I have about 35-40 users running on a Small Business Server running exchange. This morning we started getting issues with users connecting to Exchange. Some would connect just fine, others would not even attempt to connect. Some OWA access was possible, some wasn't. Then, if a user who was able to connect via Outlook closed outlook, then reopened, they couldn't connect. It's all very spotty right now.
I should mention that the server is at a remote COLO faciltiy on the other side of the city.
Things I've done.
1. Licensing, 37/45
2. OWA is accesible no problem from within the Server, no issues.
3. Server Reboot
...all among other things.