I face an error in my .net application Fatal error encountered during command execution. (5 replies)

hi all. I face an error in my .net application Fatal error encountered during command execution. But this probelm doesn't not occur frequently.but after testing so much time i found noting.but i found this error in my client log file.i tried to increase my wait time out of mysql but the problem remains same as per my client.but this things does not happend in our network or our end.please help me i am out of option now.i attach the error log if any one have an ans for this type of problem please help me. _____________________________________________________________13/07/2013 09:50:31 | [Exception Message:Fatal error encountered during command execution.] | [Inner Exceotion:MySql.Data.MySqlClient.MySqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. at MySql.Data.MySqlClient.MySqlDataReader.NextResult() at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)] |=================================================================================