Event ID - 9100

Event Id9100
SourceMSExchangeSA
DescriptionThe MAD Monitoring thread was unable to read the queue information, error 0x800706a6
Event InformationAccording to Microsoft:
This issue occurs because the monitoring thread that is run by the System Attendant service (Mad.exe) cannot query Microsoft Windows Management Instrumentation (WMI) for the state of any of the following items:
Cluster resources
CPU usage information
Instances of the ExchangeLink class or other
classes provided by the Exchange WMI provider (Exwmi.dll)
The errors may be caused by one of the following issues:
Corruption in the WMI infrastructure
Transient problems with the WMI infrastructure
Network connectivity issues Resolution
If these events occur occasionally, they can be safely ignored. However, if they occur frequently (for example, every five minutes), you should investigate the cause of the event. To do so, follow these steps:
1. Make sure that WMI is installed correctly. For additional information about WMI, see Windows 2000 Online Help.
2. Use the Windows Management Instrumentation Tester (Wbemtest.exe) to make sure that WMI is responding, the Exchange 2000 namespace still exists, the appropriate class exists, and the Exchange WMI provider can enumerate instances of that class. Wbemtest.exe is installed in the %windir%\system32\Wbem folder in your Windows system folder. For more information about how to use Wbemtest, see Windows 2000 Online Help.
3. Check network connectivity.
Reference Links

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.