If you see:
The Microsoft Operations Manager Expression Filter Module could not convert the received value to the requested type. EVENT ID 11903
the problem might be that your SCCM agent can not talk to the SCCM server.
I my case, the problem was that the SCCM server has been decommissioned but no-one uninstalled the SCCM agent from PC’s and servers.
You can confirm if the SCCM agent is installed by checking CONTROL PANEL for CONFIGURATION MANAGER icon and/or if there are files in C:\Windows\ccmsetup
Fortunately, this is an easy fix:
- Open an CMD prompt (or PowerShell) as an Administrator
- Change directory into C:\Windows\ccmsetup
- Run this command ccmsetup.exe /uninstall
Although the uninstall is silent, you can confirm it has been successful by checking CONTROL PANEL for CONFIGURATION MANAGER icon and/or if there are files in C:\Windows\ccmsetup.