Outlook 2007 keeps asking for password

20 pts.
Microsoft Exchange 2007
Microsoft Outlook 2007
Outlook security
Some of my users on our LAN are getting the password prompt in their Outlook about every 2 hours.  Our Exchange 2007 server is using Windows 2003 and we are on a Windows 2003 active directory domain.  Most of my users are using Outlook 2007 on Windows XP SP3.  What is confusing is only certain users are getting the password prompt.  Everyone else is connecting just fine.  I have been troubleshooting this for a while now.  Please help!

Thank you,

Brandon Simmons

Software/Hardware used:
Outlook 2007, Microsoft Exchange 2007 on a Windows 2003 server

Answer Wiki

Thanks. We'll let you know when a new response is added.

Hey Brandon, I’m new here still, I just watch the posts and came across yours. I think it’d probably help to know what you’ve done so far to troubleshoot the issue? That way we’re not duplicating troubleshooting steps, giving you basic answers, assuming one thing or another has or has not already been done.


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  • Bsimmons23
    Hello, Thanks for responding. As for troubleshooting, here are things I have checked so far. - Verified Autodiscover settings and that it is set up correctly - Checked IIS security settings for Exchange directories - Checked server settings on Outlook client setup - Using cached mode and always prompt for logon credentials is unchecked What is strange is this is only happening for certain users. I've even had to unlock some of their active directory accounts. We have ours set to get locked out after more than 5 unsuccessful login attempts. I've also tried blowing away a couple of the user's Outlook profiles and recreating them, but that doesn't seem to help. I also had installed Update Rollup 10 for Exchange 2007 SP1, but I heard it had broken some things, so I uninstalled it and left it at Update Rollup 9. Thanks again for your help, Brandon
    20 pointsBadges:
  • Technochic
    Are they the same users having the trouble all the time? Have they recently reset their domain password? Have they logged off and back onto the machine and tried again?
    57,010 pointsBadges:
  • Technochic
    Have you had any of the users log onto a different machine and connect?
    57,010 pointsBadges:
  • SBSGuru
    Hi There, I have come accross the same issue as well. I recently migrated an SBS 2003 to SBS 2008 which comes with Exchange 2007. Users are all using Outlook 2007 and they kept being asked for the password for the remote.domain.com. Came accross this website which explains that it is an issue with Auto Discovery and the URLs which need to be entered into Exchange for the location of the Auto Discovery. Link to the Site: Outlook 2007 Keeps asking for password. Also, make sure you upgrade Exchange 2007 to SP3
    30 pointsBadges:

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