I am unable to connect to the console receiving the 'Error: Connection Error An error occurred. I've been having a bit of trouble with my WSUS server as of late. If you've been managing a WSUS server, you may have run into the well known MMC connection error above (appears as Event ID in the. Error 1722 the rpc server is unavailable windows 2012 r2.Pope pius ix syllabus of errors summary for resume.We're back online with no issues but when I went to check on the WSUS Server (on Server R2) it wouldn't respond and kept throwing error: connection error. This issue occurs because the WSUS application pool in IIS “WsusPool” has reached it's maximum private memory limit and. Verify that the Update Services service, IIS and. The WSUS administration console was unable to connect to the WSUS Server via the remote API. Wsus Connection Error Reset Event Id Wsus Server If you've been managing a WSUS server, you may have run into the well known MMC connection error above (appears as Event ID in the.