After a reboot, I got this error when trying to expand "Microsoft Exchange On-Premises", "Connecting to remote server failed with the following message : WS-Management cannot process the request. The operation failed because of an HTTP error (12152) is: The server returned an invalid or unrecognised response."
There were 2 updates that installed before I rebooted, An Exchange Anit-Spam filter update and a security update for microsoft XML Core Serices 4.0 service pack 2. All was good before the reboot. Also no iPhones are updating exchange accounts. All PC exchange accounts are working fine.
Thanks for any ideas