Tim Huffam

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

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Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET.

The following error occured when trying to open a web page (ASP.NET) that was doing an HttpRequest.

"The underlying connection was closed: The remote name could not be resolved."

This is usually caused because the ASP.NET app is on a network that is using a proxy server - and as ASP.NET does not run as a user account, it does not have access to the proxy settings in the registry.

To resolve add the following section to your web.config file.

Note that this must be placed within a <system.net> section (not system.web!).

MS have a kb article on it here.

HTH

Tim

posted on Thursday, February 09, 2006 9:20 AM

Feedback

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 3/8/2007 5:47 AM Nav

Is this the way we are supposed to define the proxy:

<configuration>
<appSettings>
<add key="key1" value="val1"/>
</appSettings>

<system.net>
<defaultProxy>
<proxy
usesystemdefault = "false"
proxyaddress="http://proxyserver:port"
bypassonlocal="true"
/>
</defaultProxy>
</system.net>

<system.web>
</system.web>
</configuration>

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 8/9/2007 2:23 AM bhasjar

i added this to web.config but the same error is coming.we are using this in episerver

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 9/6/2007 6:09 AM saikat

i also tried addin this but couldnt resolve the issue.

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 10/22/2007 1:59 AM nisheed_m@rediffmail.com

i am too geting the same error

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 11/15/2007 9:47 PM Ben

WebProxy proxy = New WebProxy("<your proxy address>", port num);

WebClient client = New WebClient;
client.proxy = proxy;

After you typed the above code, "client" object can get the external web information throught your proxy.

# re: Error: The underlying connection was closed: The remote name could not be resolved. When doing HttpRequest from ASP.NET. 11/28/2008 7:39 PM Himanshu

Hey Thank you very much.

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