Hopefully this is a simple issue, but it is driving me crazy! When BUExec12d services are automatically stopped (seeming every couple of days for whatever reason), and then attempts to restarts itself, it gets an error message and can not restart the services. I have tracked the problem down to the SQL Server (BKUPEXEC) service is not starting due to the Log On credentials not being set correctly. It should be using the Local System Account, but it can be seen in the Services MMC that the login credentials were changed to use a specified account, DOMAIN\Administrator, with the correct Admin password. However, the serivice will not start even with this account; they only start when the Local System account is set as the login. I can change the login credentials manually in the Services MMC and start the service, and the rest of the BUExec services start and work. However, next time this happens, the login account has been set back to the DOMAIN\Administrator account and the service will not Autostart again. The various Backup Exec services all do use the DOMAIN\Administrator account to successfully start once the SQL Server (BKUPEXEC) service has started. I have tried using the Account Login Wizzard to set the logon account to the DOMAIN\Administrator, but this also sets the SQL Server to the DOMAIN\Administrator, which is the problem in the first place.
I belive that this all started when I changed the SBS Administrator password for security reasons.