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Login failed for user 'sa'. (.Net SqlClient Data Provider)

Posted By:      Posted Date: September 02, 2010    Points: 0   Category :Sql Server
Hi,     I am able to login using windows Authentication to my DB server. But when I am trying using Sql server authentication "sa" then following error is coming:   =================================== Cannot connect to .. =================================== Login failed for user 'sa'. (.Net SqlClient Data Provider) ------------------------------ For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476 ------------------------------ Server Name: . Error Number: 18456 Severity: 14 State: 1 Line Number: 65536 ------------------------------ Program Location:    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)    at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)    at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)    at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) &

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