BizTalk Receive Locations Disabling

September 14, 2006 · 2 min read

Error: "exhausted the network retry attempts"

Do you have over 50 receive locations that you use for Biztalk 2004/2006. Have you ever found them disabled because of Exhausted Network Retries? The problem is not Biztalk but Windows Server 2003 and NetBIOS. Basically it comes down to a default value of connections to a particular server. The default value is 50. You can set this value up to 65000. We used 100 as the value and run at 91 connections constantly. This article will help:

Here is the basics of what you need to do:

1.Click Start, click Run, type regedit, and then click OK.
2.Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters
3.In the right pane, double-click the MaxCmds value.
4.In the Value data box, verify that the value is 50 or more.

Note In a Microsoft Windows Terminal Services environment, you may have to set the MaxCmds registry value to 500 or more. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
232476 (http://support.microsoft.com/kb/232476/) Terminal Server client connections and logon limited by MaxWorkItem and MaxMpxCt values
5.Locate and then click the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters
Note Make sure that you make this change to the lanmanserver\parameters registry key and not to the lanmanworkstation\parameters registry key mentioned in step 2.
6.In the right-pane, double-click the MaxMpxCt value.

Note On SMB servers that are running a version of Windows earlier than Windows 2000, the MaxMpxCt registry entry is named MaxMpxCount, but has the same function.
7.In the Value data box, verify that the value is 50 or more.

Note The MaxMpxCt value determines the maximum number of simultaneous, active requests that the server permits from an individual client.
8.Quit Registry Editor.

I did all of these things on an install of BizTalk 2006 running on Windows Server 2003 and I have not had another receive location disable because of exhausted network retries.

This article is part of the GWB Archives. Original Author: Mark Wiggins

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