Correct service account for ManageEngine ServiceDesk Plus - MSP

Hi,

Every couple of weeks we are experiencing instability in our SDP instance. The end result is that the application becomes unusable and we need to restart the ManageEngine service. We get the following errors in the Windows event log:

OpenSCManager failed - Access is denied. (0x5)

and sometimes:

There may be a configuration problem: please check the logs.

However, I'm not sure if the error is related to the cause of the problem, or is a result of the system crashing.

The service uses the 'Local System' account with '...interact with desktop' enabled. We are running on Windows Server 2008 R2 and use SQL Server 2008 R2. Everything is fully patched. our version of SDP is 7605. Once the service is restarted everything is fine.

Within the application's System Log we get errors like this:

Exception while trying to get notification content for General ID : 6683 Problem occured while fetching content for notification.

Our hardware resources are above the minimum required.

Any suggestions on what to try, or where else to check?