Jan 20, 2011 · An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified ... execution, including: SQL-level statistics for the execution (database time breakdown, CPU, I/O read/write breakdown), degree of parallelism for the query, start and finish time of the execution, etc. Figure 4: Monitored SQL Execution Details page. The second view is at the SQL Monitoring statistics for different instances of a SQL statement. Oct 27, 2019 · Verify that SQL server is running on the WSUS Server. If the problem persists, try restarting SQL. System.Data.SqlClient.SqlException — Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding. Source.Net SqlClient Data Provider. Stack Trace: The issue is caused by a timeout setting for “table designer updates” which is set to 30 seconds as the default value. If your changes cannot be saved in this time then they will not be. To change the setting, go to “Tools” and then “Options” from the main menu of your SQL Server Management tool.