Hello,
I have an up-to-date Exchange 2010 server. We're migrating to Exchange Online this summer, so no plans to upgrade. Late last week, the three above services stopped working in the Outlook client. They still work in OWA (which is still working completely onsite and offsite) and mobile devices using ActiveSync are functioning. We hadn't made any configuration changes prior to the problems. I have hit a wall and am looking for other suggested troubleshooting tips. So far, I have:
1. Recreated a test Outlook profile and upgraded to Office 2016 with no change.
2. Reset the AutoDiscover and EWS virtual directories and still have the same errors.
3. Tested with the MS Remote Connectivity Analyzer & Test-OutlookWebServices, which both indicate that the connection was forcibly closed.
4. I am able to access email.domain.net/EWS/Exchange.asmx successfully, but I get an error when connecting to email.domain.net/Autodiscover/Autodiscover.xml. However, we never configured AutoDiscover, so I'm not sure why it would suddenly have an effect.
5. Both the OS and Exchange are running the latest updates.
Thank you in advance for any additional help.