Geeks With Blogs

Tim Huffam Dotting the I and crossing the T of I.T.

I got this error immediately after installing VS2005 & SQL Server 2005 Express and trying to establish my first connection using the new server - not a good start at all - and by the looks of it, it's happened to many hundreds, if not thousands, of others too.

Generally this error occurs if you cannot connect to the SQL server - as the message says (no sh*t).  However, what's not obvious is why...

First suggestion is to make sure that you specifiy the instance name as well as the server name (christ knows why, but when MS refer to "Server Name" they really mean "Server Instance Name") eg if your server was named 'bigturnip' then you need to specify 'bigturnip\sqlexpress' (where sqlexpress is the instance name - this one just happens to be the default used by SQL Server 2005 SQLExpress).

If that doesn't help, then go into the SQL Server Configuration Manager and make sure you've enabled Named Pipes & TCP (if you're using it) and also go into the Surface Area Configuration tool and make sure you've set it for local &/or remote connection for the connection types you want to use.  Then restart the SQL Server (instance) service.

HTH

Tim

 

Posted on Monday, January 30, 2006 12:32 PM C# .NET , SQL Server , ASP.NET | Back to top


Comments on this post: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim, thanks so much for posting this. Specifying the instance name hit the spot first time.
Much obliged..cg
Left by C Grainger on Feb 12, 2006 12:17 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Holy crap. I cannot believe how much time I've spent on this and nobody else every mentioned machine/instance. Fixed it straight away. Thanks
Left by Matt on Feb 15, 2006 4:06 AM

# SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Iam getting the same kind of an error, but the thing is i don have MS SQL 2005, i only have MS SQL Server 2000. I use Dot Net framework 2.0. The error is like
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

Could u please tell me how to correct this.
Left by Arun on Feb 20, 2006 6:28 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Damn I wasted like an hour trying to figure this out!! Thanks for the post =P They need to add (MachineName\Instance) after "Server name:" on they add connection window!!
Left by mc on Mar 01, 2006 3:11 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks. Very much appreciated.
Left by CheezNCrackers on Mar 03, 2006 12:29 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I'm running XP Pro with SQL 2005 Express. I installed using the default option insted of a named instance. I've tried different combinations:
machinename\instance = Pluto\default

and it's not working.

Any advice?
Left by Robert on Mar 03, 2006 9:33 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Robert - SQL 2005 always uses an instance (ie so does the default install) - so you'll still need to specify the instance name - as in the example I posted.
HTH
Tim
Left by Tim on Mar 05, 2006 5:58 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Arun - sorry mate - not sure about that as I've not tried it. However, at a guess the problem is with driver/provider... my guess is that it requires an instance name (yes sql2000 does actually use instances as well) - so go look in Enterprise Manager to see what the instance name is - from memory it's the name of the server in brackets beneath the SQL Server Group node - ie (local) - so try adding "\local" to your db name in the connection string.
hth
t
Left by Tim on Mar 05, 2006 6:05 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Ur idea is realy thankfull,Before i tried a lot with many options but some error i would got ... now after reading ur solution i tried with \sqlexpress in small letters instead of \SQLEXRESS it worked out... My problem got solved . Thanks a lot once agian
Left by SR on Mar 08, 2006 11:20 AM

# An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.
Requesting Gravatar...
The full error is:
An error has occurred while establishing a connection to the server.  When connecting...
Left by Jess Coburn's Blog on Mar 26, 2006 5:04 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Man.. you are great!!! the server instance name thing worked for me
Left by Sumant on Mar 28, 2006 2:27 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
The server instance name did it for me...thanks so much for the post.
Left by anand on Mar 29, 2006 3:41 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
You are the man
Left by kevinus on Mar 30, 2006 8:23 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
You've just saved me from a few more hours grief - top work.
Left by Jimbo on Apr 05, 2006 3:55 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks so much Tim, this solved my problem and saved me many hours.
Left by Jorge on Apr 07, 2006 12:38 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim;

Thanks, thanks, thanks, thanks and... thanks again!

I'm fighting with this problem already have 4 days with no solution!

Now I have a solution

Thanks again!
Left by Willian Lopes on Apr 09, 2006 6:34 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks - Wasted half a bloody day already !
Left by Anthony on Apr 10, 2006 9:19 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim:

Thank you so much!!!! I have wasted so many hours on this already and finally it worked and finally I can move on. I am so happy!!!! =D

Thanks again!
Left by yue on Apr 10, 2006 9:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi Tim!

It seems that you made have a million developers happy (me included!). I nearly threw my PC against the wall because it just didn't work. After I found your posting my life felt a lot better!

Many thanks and all the best for you!
Left by Dirk on Apr 21, 2006 1:01 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Many thanks, man!:)
Left by smlfish on Apr 22, 2006 4:31 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,

I am still getting the error. Below is my connection query- Simple test query. And i checked the surface area config the tcp/ip and namedpipes are selected.

When i use the database connection tools and work with the data set it works.

Please help me. Tx

string connString = "server=SAM/Sam<semicoln>" +
"uid=userSQL405<semicoln>pwd=1Qazxcvb<semicoln>" +
"database=dbVS405"<semicoln>
//string connString = "server=(local)<semicoln>Trusted_Connection=yes<semicoln>database=dbVS405"<semicoln>
string selection = "select * from tblEmployees where empid ='002'"<semicoln>
SqlConnection sc = new SqlConnection(connString)<semicoln> // get ready to connect
sc.Open()<semicoln> // connect
SqlCommand cmd = new SqlCommand(selection, sc)<semicoln> // get ready to read
SqlDataReader sdr = cmd.ExecuteReader()<semicoln> // really get ready!
while (sdr.Read()) // read at last
{
listBox1.Items.Add(sdr["empid"].ToString())<semicoln>
listBox1.Items.Add(sdr["firstname"].ToString())<semicoln>
listBox1.Items.Add(sdr["lastname"].ToString())<semicoln>
listBox1.Items.Add("")<semicoln>
//listBox1.Items.Add(sdr.GetString(0)); // empid
}
sdr.Close()<semicoln>
sc.Close()<semicoln>
}
catch (Exception ex)
{
listBox1.Items.Add(ex.Message)<semicoln>
}
Left by chelvy on Apr 22, 2006 5:04 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanx Jim, I was also loosing my time in a not so smart way... :-)
Left by Rogerio Senna on Apr 27, 2006 6:37 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,

I had a similar problem. My website was on the local machine too. It was not a fault with "Remote connections" at all!
Actually, I was typing (local)/sqlexpress instead of <b>(local)\sqlexpress</b> ... (<b>use backslash</b> instead of forward slash)!!
Phew! Sometimes the smallest of things can frustrate you!
Left by azhar samdani on Apr 29, 2006 9:01 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
One and a half days working with error 40 in SQL Server 2005, 1000+ pages searched and read on google, 3 books, believe it or not-from MS Press!!--way to go Microsoft-nothing like incompetent documentation of their own products.

Thanks for having the foresight to post this on the web. Kudos man!
Left by JC on May 01, 2006 11:40 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
machinename\sqlexpress worked for me...other similar combinations kept bombing, including localhost\sqlexpress...
Left by Tim on May 02, 2006 8:25 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Most websites dealing with connecting to MS SQL DB using ASP.NET & ADO.NET suggest localhost. Replacing this with server\instance worked for me. Thanks!
Left by Kiran Bagga on May 04, 2006 10:34 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
My computer can connect remote SQL Server 2005. But others doesn't. Why?
Left by Jinn on May 07, 2006 2:18 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
My Machine name is "TASPWEB" and i am accessing Northwind database.
what will be my connection string in vb.net
"Data source = TASPWEB;Initial Catalog= Northwind;user id = sa;password=sa"
Left by umesh on May 10, 2006 11:18 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi, I tried this but didnt work at all. My SQL SERVER 2005 instance was running properly till yesterday. I installed IE 7 today and after installing IE7 i cud not connect to SQL SERVER 2005 and its showing the message :

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)



Please helpppppp
Left by Rohit on May 10, 2006 12:45 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thank you very much!!!!!!!!!!!!!!!!!
Left by Nisar on May 10, 2006 6:27 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
what will be the connection string if my machine name is "mac" and server name is "DBserver" and database is "empdb"
Left by umesh on May 11, 2006 5:20 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
If u get this provider:named pipe provider ble bla.... first u need to check ur connection string. if the connection string is correct and then aslo u r getting this error then in configuration manager u enable tcpip and remoting protocol...

Happy coding !!
Left by santhosh.k on May 12, 2006 3:51 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Good stuff!!

Back slash ... Forward slash ... who would have thought there would be such a difference!
Left by Nick Hoggard on May 17, 2006 2:52 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Amazing! Just been trying to figure out this problem for the last hour. 2 seconds on this page fixed my app!
Left by crabback on May 17, 2006 7:12 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Nothing worked for me..
Still getting the error..
Left by Bala on May 30, 2006 8:15 AM

# SQL Server 2005 SQLExpress advanced
Requesting Gravatar...
I use php 5 and i'm trying tp connect to sqlexpress 2005 with this connection string
$msconnect=mssql_connect("COMPUTER_NAME\SERVER_INSTANCE_NAME","USERNAME","PASS");
I get the error "Unable to connect to localhost"..I NEED HELP!!!!!!!!!!!1
Left by Clockwise on Jun 08, 2006 7:14 PM

# SQL Server 2005 SQLExpress advanced
Requesting Gravatar...
I use php 5 and i'm trying tp connect to sqlexpress 2005 with this connection string
$msconnect=mssql_connect("COMPUTER_NAME\SERVER_INSTANCE_NAME","USERNAME","PASS");
I get the error "Unable to connect to localhost"..I NEED HELP!!!!!!!!!!!1
Left by Clockwise on Jun 08, 2006 7:17 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
hello

i tried "osql -E -Q "SELECT * FROM ..." and i get the error "Named Pipes Provider..." how can i fix it?
Left by silas on Jun 13, 2006 3:04 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
SQL2000/VS2005/db name is DVS/Working connstring is - connectionString="Data Source=*;Initial Catalog=DVS;Persist Security Info=True;User ID=*;Password=*"/ The Server Group Name is (local)(Windows NT)

If I add local\ or Windows NT\ to the Catalog name the connection wont even test OK, but just DVS works from my machine - the server is remote to me (the other side of the office on another machine!).
Now, when I promote my website to our webserver in the configuration that works on my machine - thats when I get the "provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server" error. The server is remote to our webserver as well - weird or what??

Anyone got a clue about this

Cheers for reading this far

Dave
Left by JoeLeTaxi on Jun 15, 2006 1:02 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Sorry - forgot to say - I have switched on Named Pipes and TCPIP

Cheers

Dave
Left by JoeLeTaxi on Jun 15, 2006 1:05 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Dave, the catalog is the db name (not the server name). Data Source is the server and instance (if you have a named instance configured). If no instance name is configured just the name of the server (name of the machine running the sql server process) will suffice. If an instance is configured then you'll need to "\instance" to the server name (where instance is the instance name). eg:

Without a named instance:

Data Source=myserver;Initial Catalog=mydb;Integrated Security=true;Connection Timeout=1;

With a named instance:

Data Source=myserver\myinstance;Initial Catalog=mydb;Integrated Security=true;Connection Timeout=1;


hth
Tim
Left by Tim on Jun 15, 2006 1:15 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I'm being totally thick here!! (no change there then!!)
How do I know if there is a named instance or not?
Cheers
Dave
Left by JoeLeTaxi on Jun 15, 2006 1:21 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Probably the easiest way is to start up Enterprise Manager (either on your machine or on the db server itself).

If you can see the db listed in Enterprise Manager then it's instance will be listed.
eg if your db server has no instance it will say something like:
MYSERVER (Windows NT)
If it does have an instance then it will looks like this:
MYSERVER\THEINSTANCE (Windows NT)

In both cases ignore the (Windows NT) - ie just use the word after the server icon.

User this in your connection string.

hth
Tim
Left by Tim on Jun 15, 2006 1:35 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks Tim - OK, On the server, it has a name of (ignore the quotes) "(local)(Windows NT)", and on my machine it has a name of "nnn.nnn.nnn.nnn(Windows NT)", so I would assume that there is no instance - true?
Beneath each of them is the normal structure of Databases, DTS, Management etc etc, and within the Databases are (strangely) all the databases that I use. Right - that sets the scene properly!!
So, any idea why I'm still getting the error?
I can feel it in my water that its going to be something stupid, but at the moment I cant see it - help please - sorry to take up so much of your time
Cheers
Dave
Left by JoeLeTaxi on Jun 16, 2006 5:24 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
On the server it says 'local' because the db server is one the same machine as the instance of enterprise manager.
However from your machine it's using the ip address of the server (nnn.nnn.nnn.nnn) as it's not 'local' (ie it's not on your desktop).

So, to be safe always use the ip address - then your config file will work both when running on your pc and on the server.

eg:
connectionString="Data Source=nnn.nnn.nnn.nnn;Initial Catalog=DVS;Persist Security Info=True;User ID=*;Password=*"

FYI: you can use either the db server's ip address or it's machine name (which will resolve to an ip address internally).
Left by Tim on Jun 16, 2006 7:41 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim....
You are a star - it works - thanks for all the help.
Cheers
Dave
PS up and working bright and early this morning are'nt you!!
Left by JoeLeTaxi on Jun 16, 2006 7:57 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Help me i am having trouble with user name and password what should i do
Left by Manish on Jun 23, 2006 3:00 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you!

SQL Server is so much more picky than Interbase when setting up databases. And the obscure error messages don't help.

But a post like yours does! Chapeau.
Left by Taco Oosterkamp on Jul 06, 2006 9:29 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Oh boy!
Thnx to google for getting me to this page. I got nothing from MSDN forums regarding this very problem.

I am new to this, and istalled Vis Stud EE 2005 from a free disk on a UK mag. My problems start when I try to connect to a db using "Add Connection" dialog.

The Data source type specified in the tutorial is MS SQL server, Data Provider is .NET Framework Data Provider for SQL server...

I used the "Refresh" button next the Server Name textbox and get ATHLON2100\SQLEXPRESS as the server name.

Unfortunately, I still get the Error 40 "Named Pipes" message we are all talking about.

I've checked the config' manager but I can't find any reference to TCP/IP and remote access mentioned in some of the other responses. Except that TCP/IP is enabled as shown in "Protocols for SQLEXPRESS" and "Client Protocols"

I would really value some help with this!
Also, in an attempt to get an interface for SQL server, I downloaded and installed "Server Management Studio Express" from MS. This has a better interface, but I to scared to make any changes that I don't understand.

ps. This site goes straight into my Favourites, on top of MSDN forums.
Left by Brian on Jul 14, 2006 7:35 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks from Ukraine:) That was very helpful...

??????? ??????? =?
Left by Dim)on on Jul 20, 2006 10:36 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Well bugger me, of course it was the instance name ........ now how come it took me 3 hours banging me head against the desk, and then 1 minute on google to find your suggestion, then oh look it works.

Thank you so much, add my name to the long list of "I'll buy you a pint" programmers.

Cheers from Derby,UK.

Jonathan
Left by Jonathan Barton on Jul 26, 2006 7:20 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks - saved me hours of hair pulling. I saw the error message and just groaned - I know that it was going to be one of those long trawl problems - but no, with your help all sorted very quickly. Thanks
Left by Steven Wilber on Aug 16, 2006 2:20 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Damn, spent 3 months with every possible combination of trial and errors. None worked. MS can sometimes be cruel. Thanks a lot Tim.
Left by Junior Osei-Agyemang on Aug 18, 2006 11:22 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
In order of priority you rule over MS and Google!
Left by Rudi on Aug 25, 2006 3:35 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
You are now like a god to me. I am bowing to you ... tomorrow I will sacrifice a goat in your name.
Left by humbled in chicago on Aug 25, 2006 10:41 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I usually gets the same error but as i restart the machine it starts working.
Left by Sumit Bajaj on Sep 07, 2006 2:56 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
hello :-)

I want to connect from VS 2005 to a ms sql express server on a remote machine via .NET Framework-Data Provider for SQL Server.
I really tried anything you can imagine, just the server's name (name of the pc in network) in lowercase and uppercase letters and in any combination with the instance-name (shown for example when i have logged in to use MS SQL Server Management Studio Express: "<PC-NAME>\SQLEXPRESS") and in any combination with backslash and forward slash. i allowed remote-connections, mixed authentication, tcp/ip- and named-pipes-connections AND RESTARTED THE SQL SERVER. i can logon local with the same user and the same password and i really have ALL PRIVILEGS on all database objects. any solution i found until now didn't work - please help me, i'm really desperate ;-(
Left by Christian Sollfrank on Sep 08, 2006 12:39 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,
I got the following error while trying to un install my product. Can anybody help me to eliminate this error ....?


SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Left by Karthikeyan on Sep 15, 2006 10:02 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
1 connection ??: example :
connectionString=@"Data Source=*;Initial Catalog=DVS;Persist Security Info=True;User ID=*;Password=*"/

2 ???????, ???????,?,??????
try
Left by 0号博士 on Sep 19, 2006 8:23 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
my god it is Support Chinese
Left by lhbsh on Sep 19, 2006 8:27 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Take a look your fire wall or connectionstring add @
Left by lhbsh on Sep 19, 2006 8:28 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Wow - Thanks - adding "\sqlexpress" did the trick. Thanks for helping me find that needle in the haystack! As with others you have saved me a bunch of hours.
Left by Stan Vickers on Sep 20, 2006 2:33 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Adding \sqlexpress worked for me
Left by SM on Sep 22, 2006 1:07 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thanks :) , this fixed my problem.
Left by danny on Sep 27, 2006 6:47 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Million thanks for your posting. You saved
my day with the \sqlexpress
Left by Michael on Oct 07, 2006 12:36 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you so much for this great posting, I won't claim I searched too much or read too much, I was lucky to find this post straight away,

thank you Tim,

Manal
Left by Manal Helal on Oct 11, 2006 1:00 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Way to go Timmy
The World is mine!!!!!!
Left by Stewie on Oct 12, 2006 5:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I'd like to add my thanks to all the others. I was tearing my hair out following all the various troubleshooting procedures when I cam eacross your suggestion to name the instance. Presto! problem fixed...
Left by Emil Gottwald on Oct 13, 2006 2:40 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
typeing in server\sqlexpress wasn't enough for me. I had to enable all four protocols: Shared memory, via, tcp/ip, named pipes, and then it worked. I think it was the shared memory that did the trick.
Left by Brad morrison on Nov 01, 2006 11:07 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
all you need is:

CONN_STRING = "Server=.\\SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI";

NOTE: write server name with TWO left slashes ( .\\ SQLEXPRESS ) !!!

You must allow Remote Connections too:

Start->Programs->Sql Server 2005->Configuration Tools->SQL Server Surface Area Configuration. Click "Surface Area Configuration for Services and Connections". Choose "Database Engine->Remote Connections", select "Local and Remote Connections", Apply, OK

Left by firedog on Nov 08, 2006 4:29 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
For me I got the same error because the SQL Serve instance was stopped. I just had to SQL Server Config Manager and start the server and it solve the problem.
Left by Deepak Artal on Nov 22, 2006 3:26 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
This ate up my entire day of searching for solutions!! The <machinename>\sqlexpress worked for me!

You would think Microsoft will be smart enough to either put in a more descriptive error message or even put more helpful information in their website. Tsk tsk.

Glad we have someone like you, Tim!

Thanks!
Left by Keu on Nov 27, 2006 3:39 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks man, you saved a bro's *ss i has like 20 minutes trying to connect to sqlexpress and loving sql2000

:)
Left by Josue on Nov 29, 2006 1:48 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...

THank you for the help!

the name of the server must be same as the 'server name' that appears in the first popup when you open the MS SQL server.
the following connection string worked for me:
"Trusted_Connection=yes;server=yourLAPTOP\SQLEXPRESS;database=your_database";

Left by aa on Dec 05, 2006 7:18 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thanx firedog

u saved my time god save yours
Left by sina on Dec 07, 2006 5:25 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
i have the same problem when try to connect from windows 98 to sqlserver2000(windows xp no sp2) my application was developed in vb2005, the first problem was "cannot generate SSPI context", i solve this erased the trusted connection = SSPI, but now have the "error 40 could not open connection to sql Server", i read the back post and i tried the solutions but anything works

please help me....
Server=xtreme;Database=AX;Trusted_Connection=false; not work

Server=nnn.nnn.nnn.nnn;Database=AX;Trusted_Connection=false; not work

thanks
Left by CarlosG on Dec 13, 2006 4:28 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Amazing forum..
Thanks all of you.
Left by Alok Sen on Dec 22, 2006 9:17 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
How Can i connect to sql server on another machine which connect through a router ?
Left by RUkshan on Dec 22, 2006 12:19 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks. You just dug me out of a hole that I have spent the last two hours in
Left by DT on Dec 30, 2006 9:47 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I've been at this all day and still "no worky". I've got everything enabled that could possibly be enabled. Here's the connectionStrings I'm playing with. See anything I should change?

<add name="LocalSqlServer" connectionString="data source=BART;Integrated Security=SSPI;Initial Catalog=ASPNETDB.MDF;User ID=admin;Password=password;User Instance=true" providerName="System.Data.SqlClient" />


<add name="LocalSqlServer" connectionString="data source=BART;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;Connect Timeout=20;User Instance=true" providerName="System.Data.SqlClient" />

Please tell me there's something I overlooked in the strings!

Left by Zoot on Dec 31, 2006 2:33 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Great Solution, simple and short! good job.
Left by Zkario on Jan 05, 2007 7:07 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you, thank you, thank you. I had the exact problem described at the top of this doc. By changing the server name the connection worked. Boo to Ms and Yeah to you!
Kiley
Left by Kiley S. on Jan 16, 2007 5:23 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I tried everything mentioned above, however I still get the same error...

I tried with xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx\SQLEXPRESS, name, name\SQLEXPRESS.

I tried with ODBC Datasource, SQL Server (both OLEDB & SQL), SQL DB file.

I tried with Windows authentication & SQL server authentication

I Tried with/without Firewall

Simply, it does not work for me. Always the same error...

I have enabled remote connections for both tcp/ip and named pipes and restarted the server, I even restarted the machine.

What am I doing wrong?
Left by Wizard! on Mar 14, 2007 10:31 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thank you it worked when I tweaked the catalogue now I can do my college project in C# using SQL as my data source thanks Tim and Dave for presenting the Questions and Answers I needed! THANK YOU, God bless you
Left by Dominic on Mar 19, 2007 8:03 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Warning: mssql_connect() [function.mssql-connect]: Unable to connect to server:

$db = "abc";
$mssql_access = mssql_connect("STAR\SQLEXPRESS", "sa", "abc123");
mssql_select_db($db, $mssql_access);
Left by php5 beginner on Apr 10, 2007 1:39 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
DONT FORGET .\\

CONN_STRING = "Server=.\\SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI";

Left by r on Apr 22, 2007 9:05 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
THANK S A LOT......... Same error.... what a way to start. Wish Microsoft were better with their tutorials. Anywayz, This site seems grt help. Its working now. THANKS A LOT TIM!!!
Left by Jayaram on Apr 25, 2007 7:38 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hey As u have said i configured the instance and the server name, but its still the same.
Its giving the same error again...
And one more thing when i see the connection manager thats in the tray of the system...its also not connecting to itself locally but the server connects to others like sql 2000 server.
But not the 2005 server.
Please help me what shall i do?

Thanks in advance
Nav
Left by NAV on May 08, 2007 1:35 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
If you are using SQL server 2000 and it is web application then add following tag in web.config under <system.web>
tag
<identity impersonate="true" userName="ABC\administrator" password="A*4B*5C*6"/>
Left by Wasif on May 09, 2007 5:52 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you for providing this.
It works!
I've looked for it for a long time.
I quoted it in my blog with the URL.
Thanks.
Left by defmys on May 16, 2007 10:05 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Brilliant, I searched multiple web sites that claimed to solve this problem and this is the only one that worked.

Thanks
Tim
Left by Ben on May 28, 2007 12:03 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
THANK YOU SO MUCH!!!!!!! I WAS tearing my hair out over this.....ugh cant MS just make SQL EXP run like reg MSSQL...
Left by sql n00b on May 31, 2007 5:46 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you for this topic.
I`m sorry, I do not understand some moments.
Where have I to specifiy the instance name?

I just installed Visual Studio and AJAX. When I try to use AJAX functionality I get the error message. I do not try to connect to MS SQL Server in my code.

I checked server properties using SQL Server Configuration Manager. They are the following
SQL Native Client Configuration -> Client Protocols -> Named Pipes: enabled, default pipe is "sql\query"

SQL Server 2005 Network Configuration -> Protocols for SQLEXPRESS -> Named Pipes
enabled, pipe name "\\.\pipe\MSSQL$SQLEXPRESS\sql\query"

What I shell change here?

Local and remote connections are permitted.
Left by Dmitriy on Jun 13, 2007 5:29 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
make sure u have set the TCP/IP Port to 1433

SQL Configuration Manger ---> SQL Server 2005Network Configuration ---> Protocols for SQLEXPRESS

Right Click TCP/IP-->Proberties-->Ip Addresses---> IPALL --> set to 1433
Left by berlin on Jun 26, 2007 2:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
SQL Configuration Manger ---> SQL Server 2005Network Configuration ---> Protocols for SQLEXPRESS

Right Click TCP/IP-->Proberties-->Ip Addresses---> IPALL --> set to 1433


--------------------

When all else fails, try the above - worked for me. Thanks!
Left by TR on Jul 18, 2007 9:36 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi guys, I have a problem with error: 40.

I made a Web page, and it works perfect on my local machine, everything is OK, until I uloaded page to the server, it reports this error:

ON MY LOCAL MACHINE EVERYTHING WORKS AS IT SHOLULD, BUT ONLINE WONT, PLEASE HELP

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server


i'm using folowing connectionstring in .NET :
Data Source=p3swhsql-v04.shr.phx3.secureserver.net; Initial Catalog=privreda; User ID=privreda; Password=pwd;

That's what my hostting gave me as my connectionstring.

Is it ok?
Left by Zdena on Jul 21, 2007 8:07 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
"\sqlexpress" worked. Thanks a lot. Excellent forum.
Left by Kala on Jul 26, 2007 4:02 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,
I am not able to connect to SQLEXPRESS with ,MachineName\SQLEXPRESS.. BUt it works fine with ip address.. Any clues
Left by Jo on Aug 01, 2007 12:21 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hey..

Thanks a lot man..

I wasted three days lookin for this.. Finally I managed to establish connection..

Thanks a lot!!

Left by Shweta on Aug 05, 2007 11:59 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks for your valuable tips. I wasted the whole one day to get out of this problem. I change the Default server in named pipes & it works
Left by Dharmendra B. Baiswar on Aug 14, 2007 1:08 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,

I tried all the solutions, but it didn't help.

I am trying to connect to the other system on my LAN, it has installed SQL EXPRESS . Now tell me how can I connect to that system using Management Studio Express.

I tried following:

1. Using named Instance MachineName\SQLEXpress
2. Enable All protocols
3. Set the IPALL = 1433
4. I didn't understand this :
"SQL Server 2005 Network Configuration -> Protocols for SQLEXPRESS -> Named Pipes
enabled, pipe name "\\.\pipe\MSSQL$SQLEXPRESS\sql\query"" ..... As I believe it has nothing to do with Connection using Management Studio Express

Note: The system name is like IT-DEVELOP-2. I don't knew but can it be a problem that hyphen"-" are present in the Instance Name.

Please Help!

Thanks.
Left by Adeel on Aug 21, 2007 11:46 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tu si Tim, gracias desde Peru
Samuel
Left by Samuel on Aug 21, 2007 9:21 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you and google in picking this thread.
Left by Abdulla on Aug 27, 2007 11:05 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Like the first response said, less then 30 seconds after reading this article, I said to myself -- "Duhh, add the instance name!" Bam, I was up.

Thanks for the help on a stupid oversight!
Left by Dave Bauer on Sep 02, 2007 1:24 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I still having the same error...
Can i write like this?

Dim con As New SqlConnection("Data Source=.;Integrated Security=True;AttachDbFilename=D:\Wanxi\myDB.mdf")

Please send me through email please?

Thanks
Regards
Wanxi
Left by Wanxi on Oct 31, 2007 2:12 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi guyzz,
this is what worked for me (opening connection to SQLEXPRESS via mssql_connect()):

$servername='&amp;lt;MACHINEALIAS&amp;gt;\SQLEXPRESS';
$servername = '\\\\.\pipe\MSSQL$SQLEXPRESS\sql\query';
$username='';
$password='';
$connection = mssql_connect($servername,$username, $password);
if($connection){
echo '&amp;lt;br/&amp;gt;SUCCESS - CONNECTED TO SQL SERVER !!!!';
$res = mssql_select_db('test', $connection);
if($res){
echo '&amp;lt;br/&amp;gt;SUCCESS - SELECTED DATABASE [test] !!!!';
mssql_close ($connection);


}else{
echo '&amp;lt;br/&amp;gt;FAILED - COULD NOT SELECT DATABASE [test] !';
}
}else{
echo '&amp;lt;br/&amp;gt;FAILED - COULD NOT CONNECT TO SQL SERVER !!!!';
}

Also I have these hints:

A) if u cannot get your connection working, most likely you might be incorrect about login USERNAME and PASSWORD. This is quite unclear (at least it is to me) how to add new administrator/guest after first installation.

B) have a look into CONTROL PANEL-&amp;gt;ADMINISTRATIVE TOOLS-&amp;gt;EVENT VIEWER-&amp;gt;APPLICATION. You may see lots of warning, report messages from SQLEXPRESS there, and also opened connections. E.g. I found there *Server named pipe provider is ready to accept connection on [ \\.\pipe\MSSQL$SQLEXPRESS\sql\query ].* which did a trick for me.

G'd luck!
XLubos
Left by Lubos on Nov 20, 2007 4:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
gracias por el dato!!
Left by Dina on Dec 04, 2007 6:43 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
i am still getting this error.

Error in DBAcess.Execute - .Net SqlClient Data Provider An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

Please help me thanking you.
Left by Vihang on Dec 27, 2007 11:51 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim, yet another expression of gratitude from this little corner of the world! Cheers mate!
Left by marc on Jan 20, 2008 8:28 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi Friends,

I am encountered with following Problem,

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)



Why it gives error for sql2005 even i am using sql2000

Reply me

Thanks
Left by Yogeshp on Jan 23, 2008 8:33 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
2 years later, and you are still getting praise!

THANK YOU!

Left by DJT on Jan 24, 2008 6:30 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Server instance name did it for me.I am so thankful to you.
Left by Pratiksha on Jan 29, 2008 3:00 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
"Data Source=x.x.x.x,1118;Network Library=DBMSSOCN;Initial Catalog=Northwind;User ID=xxxx;Password=xxxxx;"
Left by kemna on Feb 05, 2008 2:33 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I am from a very far away place called Venezuela

Your advice has been so useful to me and saved me countless hours of development. Thank you very much
Left by Luis Robles on Feb 07, 2008 1:35 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I spent more than a working day to fix it until I found your solution. I wonder why everybody has the same problem but this solution is not mentioned in any other sites I has visited.
Thank you very much.
Left by vu minh tan on Feb 11, 2008 12:21 AM

# Same error, but only for local connection?
Requesting Gravatar...
I can sucessfully connect to and query my server installation of sqlexpress 2005 remotely, using a dot.net webservice app on my development machine.

But when I publish that webservice app to the server (same machine as sqlexpress), I get this same error.

Any ideas anyone?
Left by Tracy Spratt on Feb 14, 2008 1:47 PM

# Same error, but only for local connection? - NEVER MIND
Requesting Gravatar...
Sorry, my problem was programmer error, due to inexperience with Visual Studio 2008.

All the above was very informative though, thanks all.
Left by Tracy Spratt on Feb 14, 2008 2:18 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
adding port name to data source when creating linked server got us going, eg: servername,1433
Left by steven durfey on Feb 15, 2008 8:48 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
And it is case-sensitive!
Left by Chad on Feb 21, 2008 9:57 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
same error

tcp ip, np,via,sm all enabled

remote connection problem but when trying to access surface area i get error that no components of sql 2005 were found

this after installing vs 2008 on vista
Left by Katongole on Feb 27, 2008 8:21 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
i had the same error (Vista 64bit, SQL Server 2005 Express)

<machine name>/SQLEXPRESS

didn't work for me, but:

<machine name>/SQLExpress

does work.

So be carefull with the case...
Left by cinthamo on Mar 09, 2008 10:32 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
hi tim,
thanks for the suggestion... it really worked.. i have been crushing my had since hours!
thanks,
adi
Left by adi on Apr 01, 2008 5:06 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
"we're not worthy!!"

Thanks much Tim!
Left by Jim w on Apr 02, 2008 5:49 AM

# error CONNECTING SQL SERVER 2005 IN ASP.NET "Connections to SQL Server files (*.mdf) require SQL Server Express 2005 to function
Requesting Gravatar...
I have the problem in connecting to database thru APP_Data(in ASP.net) page
Pls help me inresolving this
Left by sunitha on Apr 09, 2008 8:22 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
had the same error, and all that crap about enabling remote connections that i found on other web sites was wrong. i simply added \sqlexpress to the connection string!
Left by Sharon on Apr 13, 2008 6:20 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you worked like a charm.

Left by mustafa on Apr 23, 2008 11:40 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
when ever iam trying to connect localdatabase iam getting error. if i connect to remote server it is working properly.
my local server name is VIJAY226336\SQLEXPRESS when iam trying to give my server name. iam getting error at the position of \. showing un reccognized escaped sequence.
Left by sri on Apr 24, 2008 6:02 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
While creating new database file in sql server 2005 with any new project it gives me error message that "An error has occured while establishing a connection to server. When connecting to sql server 2005, this failuer may be caused by fact that under the default seting sql server does not allow remote connection.(provider:Named Pipes Provider, error:40- could not open a connection to Sql Server )" such long message, guide me
Left by Abhijt on Jun 30, 2008 12:41 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
On simple sql update statement to a db on linked server, I get below error:

Named Pipes Provider: Could not open a connection to SQL Server [5].
OLE DB provider "SQLNCLI" for linked server "XXXXX" returned message "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.".
OLE DB provider "SQLNCLI" for linked server "XXXXXX" returned message "Login timeout expired".

There are triggers on the remote db server which again update my db (on different server) and here i get the error.

Please suggest.
Left by Nitin V Singh Chauhan on Jul 14, 2008 6:23 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Best one!!!!
Left by Bhushan on Jul 22, 2008 2:08 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
AAAAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRRRRRRRRRGHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
IT WORKEDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD...I want to cry....we have been (*&)(*&)(* for 3 days on that!!!!
Thank you
Left by Steve and Ann on Aug 01, 2008 9:36 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Could you please give any suggestion about this error.
Left by Ranjan Nayak on Aug 04, 2008 10:06 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi Tim,
I fixed my problem... Thank you very much... I have installed several times VS2005 since I thought it is a problem with the installation... wasted my time... again again thanks a lot...

Shanaka
Left by Shanaka on Aug 20, 2008 5:57 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Beutiful. Spent a couple of hours with this! Sorry for you guys spending days without consulting your local google service. :)

/Anders
Oxelösund, Sweden
Left by Anders Ericsson on Sep 09, 2008 6:57 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
GREAT!!!!!!
thank you for your help.
My problem has been solved.
Left by Leila on Sep 28, 2008 7:41 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thanks..problem solved...wish u the best!
Left by emi on Oct 07, 2008 12:39 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi,
I have a server on which runs both WMSDE and SQLEXPRESS. WMSDE was first installed with SharePoint and yesterday I installed SQLEXPRESS. When I run SVRNETCN.exe I can enable TCP\IP and Named Pipes for the WMSDE but when I swich to SQLEXPRESS I get no protocols at all.
Can enyone help me?
Left by Cristina on Oct 17, 2008 5:51 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Stuff in hear is really useful, works like a charm ...cheers
Left by Romel on Oct 31, 2008 5:20 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Great tip. Here is the full set of steps you will need if you want to activate the sa login under SQLEXPRESS:

1. From the command prompt connect using default windows authentication via:
sqlcmd -S localhost\sqlexpress

2. Setup sa password.
sp_password @old=null, @new='complex_password', @loginame = 'sa'
go

(It may be that SA was not installed with a NULL password, in which case you can add a new sysadmin user via)
sp_addLogin 'username', 'pass'
GO
sp_addsrvrolemember 'username', 'sysadmin'
GO

3. Enable sa
alter login sa enable
go

4. Enable "mixed-mode" authentication in the registry.

(Otherwise you get an error like: Login failed for user 'sa'. The user is not associated with a trusted SQL Server
connection.)

You can enable mixed - mode authentication in the Registry by changing the LoginMode value from 1 to "2", here:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL.1\MSSQLServer

LoginMode =2

5. Try the login!
sqlcmd -S localhost\sqlexpress -U sa
Left by Corwin Joy on Oct 31, 2008 5:55 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Oh, one more thing, in step 4 above, after you enable mixed-mode authentication you will need to restart the SQLEXPRESS service. You can do this via the SQL Server Configuration manager that comes with SQLEXPRESS.

Also, enabling the SA user may make your box less secure, I'm not a SQL Server expert...
Left by Corwin Joy on Oct 31, 2008 5:58 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
oh my god this was just what i needed it solved my problem rightaway.MS should made it more clear that it should of been the instanse to.. thx for the great post
Left by Zoran on Nov 15, 2008 2:49 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks. It helped a lot. Also remember to blank-out the "ConnectionStringOption" field, if you are not using windows authentication for SQL Server.
Left by Manish Sohaney on Dec 10, 2008 5:52 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
how cani know about server name.
Left by vivek on Dec 17, 2008 4:19 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
finally. thank you, putting the instance name did it. screw you microsoft.
Left by Acrobatic on Dec 18, 2008 12:03 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks a lot for your posting. Spend couple of days on this.
Left by Boopathi on Dec 19, 2008 4:19 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
holy shitballs I owe you at least 2 hours of web development for posting this...so much for OOTB :-)
Left by boomshanka on Jan 18, 2009 8:51 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim - Here it is Feb 2009 and after all this time your post stil gets this from me ... thank you, thank you, thank you, Thank You, Thank You, Thank You, THANK YOU, THANK YOU, THANK YOU!!!! Oh, and did I say ... THANK YOU!!?
Left by J Allen on Feb 09, 2009 8:53 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks! i am using visual web developer 2008 express edition and received the named pipes error setting up a db connection. the fix was just putting my server name in the server name box. if i tried to add anything more "\whatever", then it would fire up a numbered instance error. anyways,
THANKS
Left by ZEE THIRTEEN on Feb 22, 2009 3:13 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Tim

Thanks a lot....i had to spent more time on this..finally you resolved it...thanks again....
Left by PrakashKS on Mar 06, 2009 1:05 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Hi All,
I'm still getting the error message. below is my code.

string cnstr = @"server=machinename\sqlexpress;integrated security=true;";
SqlConnection sqlcn = new SqlConnection(cnstr);
Server server = new Server(new ServerConnection(sqlcn));
Database AutofeedsDev = server.Databases["AutoFeeds"];
Microsoft.SqlServer.Management.Smo.Table categories = AutofeedsDev.Tables["tbl_auto_Feed"];
StringCollection script = categories.Script();
string[] scriptArray = new string[script.Count];
script.CopyTo(scriptArray, 0);
Please help me from this hell...
Left by Mano on Mar 06, 2009 1:17 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
can somebody elaborate it for me please??
Left by jitin on Mar 18, 2009 4:54 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks for the post. It helped me fix the issue without spending too much time...
Left by s3 on Mar 24, 2009 7:29 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thx 2!!

wasted more than a day, not knowing the thing with the instance name (wasn't mentioned in the book i'm currently reading)
Left by royal on Mar 25, 2009 1:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you so much!!! can't believe how much time I wasted on that crap when I set up a dev server.
Left by Trist on Apr 09, 2009 2:52 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I'm still getting the error message
Left by deraz on Apr 18, 2009 10:19 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 26 - Could not open connection to SQL Server
Requesting Gravatar...
not working with me
Left by lamia on Apr 20, 2009 5:04 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thanks.
we must correctly specify the instance name in the form
HostName/InstanceName

HostName=Name of the computer from my computer properties
InstanceName=default for this is SQLExpress.

Thank You so much tim.
Left by Mahinda on May 22, 2009 12:42 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Left by harsh gupta on Jul 08, 2009 7:29 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I have installed a default instance of SQL server 2005 on XP home and all seems to be working OK using Management studio. However, if I try to make a connection using SQLCMD -S <LOCALHOST>\SQLExpress I get a version of this error. I've tried all combinations of upper/lower case, computer name etc and can't get it to work.
I've heard rumours about issues with XP home and SQL server because of the absence of IIS. Is this the problem?
Left by pauline on Jul 26, 2009 4:30 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...

if we done all the setting as mentioned above
plzzzzzzzzzzzzzzzzz put (.\\SQLEXPRESS)


CONN_STRING = "Server=.\\SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI";
Left by Ashwin on Jul 29, 2009 1:34 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
PLEASE...SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
I AM USE DATA BASE DOTNET ,FRAMEWORK SOFTWARE...
SO HOW I SOLVE MY PROBLEMS CAN U GUIDING TO ME
Left by Siddharth R. Gavhande on Aug 31, 2009 11:00 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thanks for telling that there should be the comuter's name as well as server name
Left by Farsh on Nov 10, 2009 11:10 AM

# re
Requesting Gravatar...
use Server=.\SQLEXPRESS is a good idea
Left by Jack on Dec 22, 2009 12:57 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
not working for me tried all the combinations...
Left by rohan on Dec 29, 2009 1:47 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thank you very much, Tim
Left by Balloon on Jan 12, 2010 9:22 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
how can i overcome this problem..please help me
Left by Badharudeen.N on Feb 01, 2010 8:38 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
When i am going to make a connection with sql server2005
then login failed error occur..what is the solution for this?

Left by Reena Gupta on Feb 22, 2010 5:31 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
PERFECT instance name !!!!!!!!!!
Left by noone on Mar 11, 2010 4:24 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
PERFECT with the instance name !!!!!!!!!! thx dude
Left by noone on Mar 11, 2010 4:25 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Great , you save my time

I had give .\RTC which was my unstance
Left by Anuradha on Apr 02, 2010 2:57 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
hello my friend
i have this error but i cant find this problem i have been setting SQL Server Configuration Manager and make sure you've enabled Named Pipes & TCP (if you're using it) and also go into the Surface Area Configuration tool and make sure you've set it for local &/or remote connection for the connection types you want to use. Then restart the SQL Server (instance) service but i have this problem please help me
Left by majid mansouri on Apr 10, 2010 11:17 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks so much...
I have been trying to fix this error for so long With SQL Server 2008
By luck..Read ur post....
It worked....
Left by Little on Apr 13, 2010 3:24 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Good advice. Microsoft's error messages always seem to steer you in the opposite direction. Here is an article directly from the horse's mouth about this error: http://blogs.msdn.com/b/sql_protocols/archive/2007/03/31/named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server.aspx
Left by Anonymous on Jul 20, 2010 9:20 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Wow thanks so much! I've spent all day trying to work out why we can't even open SQL management studio and turns out to be such a simple thing. servername\sqlexpress.
This is with a new install of SQL 2008 R2 - so the solution is still relevent after 4 years
Left by LisaC on Sep 19, 2010 7:36 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
What exactly is an "instance" name
Left by jim mac on Dec 03, 2010 4:19 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
I also faced such problem but i was find out the solution. The solution is:
string ConnectionString=@" Server=localhost\SQLEXPRESS;Database=myDataBase;Trusted_Connection=True";
Left by Palash Chakraborty on Jan 15, 2011 9:02 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Dear Sir,
thanks, after all i am feeling like the sun is out.
Thanks again
Left by rajesh sawant on Feb 13, 2011 8:24 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Thanks friend!
Left by rajesh on Apr 22, 2011 7:33 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
can someone help me please, i am getting this error and i have windows shared hostign with godaddy?
Left by raja on Jun 05, 2011 10:41 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
im getting this error only while connecting from pc with windows 7 while pc with xp works fine.
Left by Rakesh on Aug 27, 2011 3:44 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
Make sure you SQL Browser service is also running on the server. This did it for me after all other options.
Left by Paul on Sep 05, 2011 2:09 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
thank you very much it@s really helpfull
Left by aca on Sep 18, 2011 2:12 PM

# SQL Server 2005 SQLExpress error
Requesting Gravatar...
<?php
$server='muhammad-pc\\SQLEXPRESS';
$con=mssql_connect($server,"","");

mssql_select_db("test",$con);
$query="insert into a(id) values($name)";
mssql_query($query);


?>
Left by ahsan on Sep 28, 2011 1:53 PM

# re: SQL Server 2005 SQLExpress error:
Requesting Gravatar...
<?php
$server='muhammad-pc\\SQLEXPRESS';
$con=mssql_connect($server,"","");

mssql_select_db("test",$con);
$query="insert into a(id) values($name)";
mssql_query($query);
?>
Help me this code is not working.
mssql_connect() function error.
Left by ahsan on Sep 28, 2011 1:55 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
hey friends i had same problem from 15 days and now i fix that i use .\sqlexpress for window authentication it fine works but for sql server authentication it not accept sa as password it says its not trusted user password what to do? and thanx to all that atleast i can work on windows THANKUUUUU VRY MUCH
Left by vaishali on Feb 29, 2012 6:14 AM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
i have tried all those procedure as u discussed earlier in this blog...
Im using sql server mgt studio express .. i did my connection in sql 2000, i want to run it on 2005 ... kindly tell me how to sole this named pipe error... pls help meeeeeeee
Left by sornavasu on Mar 13, 2012 1:54 PM

# re: SQL Server 2005 SQLExpress error: ...provider: Named Pipes Provider, error 40 - Could not open connection to SQL Server
Requesting Gravatar...
i done everything as you has written but still the problem is same while executing the application and feeding the data into the text boxes and giving submission the problem is same
Left by Mohan verma madhya pradesh on Mar 17, 2012 1:38 AM

Your comment:
 (will show your gravatar)


Copyright © Tim Huffam | Powered by: GeeksWithBlogs.net | Join free