So this has happened on and off for many months. Now it just got super annoying. I give up. I have looked at countless threads and have tried everything.
Most of our users have no problems with Outlook 2010 connecting to our in-house Exchange 2010 servers. There are several who do. And of course its the wrong people with the problem. When ever they start Outlook, they get asked for credentials, and many times this happens randomly throughout the day. What I noticed today was that while comparing my Outlook connection settings (I have no problems) with those who have problems, I see that they are going through a proxy server. I've looked everywhere I can find, all of our settings are the same. How can I fix this? Outlook anywhere is configured. Many of our laptop users check their email with outlook when the get home after work. No VPN needed. The folks with the problem are connecting to our OWA url to get to our internal server. Please help me out with this one!