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In one of Win2k8R2 x64 machine, I have a C# console program which connects to a remote sql server 2008 R2 instance. Quite often I am seeing below exception message 

Unhandled Exception: System.Data.OleDb.OleDbException: [DBNETLIB][ConnectionWrite (send()).]General network error. Check your network documentation.
Mahender
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2 Answers2

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It may be problem with the credentials you are supplying.

This may help you in troubleshooting the exception

http://msdn.microsoft.com/en-us/library/6y8t7kbw.aspx

Krupan
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Try do as follow:

1)    Launch regedit.exe
2)    Add DWORD value named SynAttackProtect under registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\
3)    Set data value to 0

Full explan read here and here

Alexey Sviridov
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