Earlier today one of the ~20 users in our office at the time suddenly became disconnected from Exchange. His PC was fine, OWA working fine, no problems pinging our server or the Internet. Just a persistent "trying to connect" from Outlook 2010. When I used testexchangeconnectivity.com, I got this error:
Attempting to ping RPC endpoint 6001 (Exchange Information Store) on server 01959f55-5457-4a34-aa15-7259b9e604b5@[mysitehere].net.
The attempt to ping the endpoint failed.
Correct me if I'm wrong, but isn't this a *clear* indication of an Office365 server failure? We haven't touched our Network Solutions DNS for well over a week, our migration is completed, and things should be stable now.
This isn't the first time we've had this problem. In every case, it mysteriously cleared itself up within half a day. It's also been a different user each time. Unfortunately, these outages are making our new O365 setup look pretty bad compared to the ancient SBS 2003 exchange install we were using a month ago. It honestly feels like someone at MSFT is playing whack-a-mole with crashing servers.