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Kbase P131286: Application Server agent becomes unusable with several communication related errors with SQL Server
Autor   Progress Software Corporation - Progress
Acesso   Público
Publicação   22/12/2010
Status: Verified

SYMPTOM(s):

Application Server agent becomes unusable with several communication related errors with SQL Server DataServer

The Application Server log file shows the following errors:

[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionWrite (send()).

[Microsoft][ODBC SQL Server Driver][DBMSLPCN]General network error. Check your network documentation

[Microsoft][ODBC SQL Server Driver]Communication link failure

FACT(s) (Environment):

The above errors show up in the AppServer server's log file
Application Server connects to SQL server database
MS SQL DataServer
Windows 2003 SP2
MS SQL 2005

CAUSE:

TCP Chimney Offload feature is enabled on the server. This feature is enabled by the Windows Server 2003 Scalable Networking Pack.

FIX:

Refer to the Microsoft article 942861 for fix and/or workaround.

Microsoft Article: 94286, 'Error message when an application connects to SQL Server on a server that is running Windows Server 2003: "General Network error," "Communication link failure," or "A transport-level error"'