I have a group of user accounts in our domain where Outlook 2010 autodiscover is not working. When you login on a PC for the first time and open Outlook 2010, the User name and email address fields are blank. It doesn't appear to me like Outlook is even attempting to resolve the user name and email address. I can logon to the same PC with other accounts in the domain and autodiscover works properly. This is only occurring with a small subset of accounts and can reproduced reliably.
When logged in on the PC with the account where autodiscover isn't working, I ran Test E-mail Autoconfiguration from within Outlook and compared it to the same test for a user where autodiscover is working properly and the test passes with identical results.
I thought perhaps it might be permissions or GPO related somehow so I applied the same permissions and GPOs to both the PC and user account of a known working user and still autodiscover isn't working.
I also did an attribute by attribute comparison of the working account with the one that isn't and nothing is jumping out at me as being out of the ordinary.
Is there something on a user account that could be keeping Autodiscover from working correctly? Any thoughts on how to troubleshoot this further? I am stumped at the moment.
