Exchange 2007/Outlook Authentication Failure

Server 1: W2K3 STD - A.D., Terminal Server
Server 2: W2K3 x64 STD - Exchange 2007 (fully up to date)

I have a major issue where any new Outlook 2007 client I set up on any pc on the network will not authenticate. Initially it will discover the users settings automatically and start the process, but it then grinds to a halt and asks for a username and password (even though the user is logged on to the domain). The correct credentials do not work.

When the logon box appears it has "domain\user" filled correctly. If, however, I remove the domain and try just the user name and password, it reappears with "exchange server\user", which I find odd.

Anyway, I'd be very happy if anyone could help me shed some light on this,

Cheers,
Gab
gabioszAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Girish_2500Commented:
See this for possible causes.
KB923579
KB956531
KB825230
KB927612
0
SubsunCommented:
Check the default settings for virtual directories in Exchange Server 2007
http://msexchangeteam.com/archive/2008/02/01/447989.aspx

Specifically for /Autodiscover - Authentication "Basic & Integrated" should be selected.
0
gabioszAuthor Commented:
Annoyingly it was a basic DNS issue!
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.