WMI monitors stopped working

WMI monitors stopped working

Good morning to everyone.

 
Last Friday (Dec 9th) we updated our OpManager setup to V9 build 9010. Everything was running just fine for several hours after the update. That same day at 00:00 all WMI monitors stopped working. I can see reports up until Dec 9th 23:58 but nothing after this date and time. When I check the SNMP and WMI credentials they all pass. All monitored devices stopped responding to all WMI monitors. No updates were installed on the monitored systems or on the OM server except for the update to v9 off course.
 
It looks like some kind of time bomb that was activated at midnight. Is this a known issue? Does anyone have any idea what this might be?

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