Lukas Beeler's IT Blog

Source: MSExchangeSA
Event ID: 9188

Microsoft Exchange System Attendant failed to read the membership of group ‘cn=Exchange Domain Servers,cn=Users,dc=your domain’. Error code ‘80072030′.

Please check whether the local computer is a member of the group. If it is not, stop all the Microsoft Exchange services, add the local computer into the group manually and restart all the services.

This error message sounds very serious, but it is entirely possible that the situation is not as grave as it sounds.

If you encountered this error message, you should first read all the hints over at EventID.Net. This shows the most common causes for this problem in bigger environments.

I’ve encountered this error message in smaller environments if specific factors were true: DC and Exchange were on seperate servers, and the Exchange wasn’t a DC (which is correct). However, there is only one DC on the network. In this case, the error message above might appear immediately after you restarted the first DC.

This seems to be a minor problem in Exchange which doesn’t fully recognize that the DC is back up. Restarting the Microsoft Exchange System Attendant service will solve the problem. This is not really a full solution to the problem, as you have to restart the System Attendant service everytime you restart the only domain controller.

The right way to fix this is to install a second domain controller. If you can’t do that, scripting the System Attendant restart makes sense – my approach would be srvany.exe and a plain cmd script. I didn’t write such a script yet, and i don’t really intend to do. Just buy a second DC.