Service Unavailable Message is Displayed for On-Premise Service Center

If nothing has changed in the environment such as Software (OS, SQL, AV) hardware, network upgrades or modifications
- restart the Service Center Application server
- ensure that SCMonitor Windows service is running on the Application server
- ensure that the SQL Server and SQL Server Agent is running on the SQL server
- Ensure MWPool application pool in IIS are running (Some environments may also have an SCMessaging application pool that will need to be restarted)

Note: It can take up to 10 minutes for the restart of the Service to complete before the Service Center is accessible again

Note: In some cases, the IIS Service Center Application Server, some partners may call this the front-end server, and SQL server may be on the same system

Note: The SQL Server service name may be slightly different if a different instance name is used

Note: Support is not responsible for the external access of the Service Center. If the Service Center Application can access the Web sites it is up to the partner to determine where the issue is

If a change has been made
- Collect logs from the Service Center Application Server
  - Follow this KB to collect logs. Locations and Descriptions of Barracuda RMM Log Files
- Roll back the changes or restore from a backup
- Contact Barracuda RMM Support.