This monitor checks the status of the SQL Agent service for this instance of SQL Server. State will change to an Error state and an alert generated when the service is not running.
If the SQL Agent service is configured to be disabled, no state change or alert will be generated.
A service can stop for many reasons, including:
The service was stopped by an administrator.
The service was prevented from starting because the user account could not be authenticated.
The service encountered an exception that stopped the service.
The service was improperly configured, which prevented it from starting.
Another service (e.g. SQL Server) that this service is dependent on was stopped
You can attempt to restart the Windows service for the SQL agent by using the following link:
Start SQL Agent service