+ 0 Votes Something else to try... MikeBlane 3 years ago See http://support.microsoft.com/kb/912414. Your server may not be able to verify the credentials of the username created for SQL Server. The questions that I have are: - What configurations or parameters were recently changed on this server? - Can the server ping the domain controller consistently? - Has a new managed switch been put into place between this server and the domain controller? - When you created the SQLSVR account, did you set the password to not expire? Try changing the user account to "LocalSystem" in the services "Logon" tab to see if the service starts operating correctly.