Symptoms

After installing/attaching agents the state is displayed as “Not monitored”

Note: The agent will likely appear this way after first installing/attaching. wait 24 hours for it to auto-configure and only assume failure if it is still showing the same status after this

Resolution

1. Connect to server that is displayed as “Not monitored”
2. Open the run box and type “Services.msc”
3. Locate service named “System Center Management”
4. Right click and stop service
5. Browse to C:\Program Files\System Center Operations Manager\Agent
6. Change folder name to “Health Service State Old”
7. Start service and make sure that a new folder is created
8. Wait 5 minutes and refresh SCOM console to ensure that agent is now monitored