I have a client whose users randomly get prompted for their exchange credentials when using outlook. If they do a reboot, then everything works fine. I have not been able to reproduce the problem. It comes at random to random users. Below is our network:
All servers are 2008 r2 (not sp1)
Exchange Server 2010 SP1
The main server is our AD/DC, DNS
Exchange is on a separate box in the same location
I think this is some sort of autodiscover issue. But I have no way to figure out how to troubleshoot it. If anyone has seen this issue before, any help would be awesome!