Hi, our exchange server is logging event ID 9186 every 10 minutes or so. I have checked active directory and I verified that the local computer is already part of the group the event specifies. I also tried to restart the system attendant service to no avail. Any help would be greatly appreciated.Here is the details of the event:Microsoft Exchange System Attendant has detected that the local computer is not a member of group '/dc=local/dc=Company/ou=Microsoft Exchange Security Groups/cn=Exchange Servers'. System Attendant is going to add the local computer into the group. The current members of the group are 'CN=Exchange Install Domain Servers,CN=Microsoft Exchange System Objects,DC=Company,DC=local; '. System attendant service is using local account. Here is another error that is logged that may be related. It is event error message 4001: A transient failure has occurred. The problem may resolve itself in awhile. The service will retry in 56 seconds. Diagnostic information:Cannot open mailbox /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=Server/cn=Microsoft System Attendant.Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException: Cannot open mailbox /o=Company/ou=Exchange Administrative Group

Likewise... JUST started... no updates in a few days best I can tell... just "stopped" working and any attempts to reboot/restart yield this SA/4001 error... digging too... hope someone can help soon

I get the 4001 error on restart and have to manually start the system attendent. Once started it runs fine and does not seem to cause any further problems unless.... it is also linked to my online defrag problem that locks the server up solid as a rock.