Hi
From your Exception Details:
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +857242
I just didin't know you networks condition. So, have you tried to increase the Connection & SqlCommand Timeout? This article might help.
http://www.eggheadcafe.com/PrintSearchContent.asp?LINKID=357
http://forums.asp.net/thread/992979.aspx
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Best Regards
XiaoYong Dai
Microsoft Online Community Support
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