If any other user on the machine connects and works fine, I would agree its something with the user account.
Have you tried removing Exchange attributes and then renabling them and reconnecting the mailbox? Obviously verify all the settings before doing this, but I have found this to fix a number of issues with user mailboxes over the years. Greg Sweers CEO ACTS360.com<http://www.acts360.com/> P.O. Box 1193 Brandon, FL 33509 813-657-0849 Office 813-758-6850 Cell 813-341-1270 Fax From: Bob Fronk [mailto:b...@btrfronk.com] Sent: Thursday, September 23, 2010 9:13 PM To: MS-Exchange Admin Issues Subject: RE: Outlook requires credentials Same subnet, Same LAN, same switch. It appears to be just this user. Creating a new profile does auto configure. No wireshark. From: Richard Stovall [mailto:rich...@gmail.com] Sent: Thursday, September 23, 2010 9:01 PM To: MS-Exchange Admin Issues Subject: Re: Outlook requires credentials Some questions you've probably already thought of. If so, I apologize. On the same network as Exchange? Same domain? Is the behavior the same for all users who logon to that particular PC? When you create a new Outlook profile, does it automatically find the Exchange settings based on the logged-in user? Wireshark? On Thu, Sep 23, 2010 at 8:50 PM, Bob Fronk <b...@btrfronk.com<mailto:b...@btrfronk.com>> wrote: Server: SBS 2008 / Exchange 2007 Client: Windows 7 / Outlook 2010 On one PC, when launching Outlook, Outlook opens and then requires username and password to be entered. I have checked HTTP/RPC (not configured) and compared all settings to an identical PC. I cannot find the issue. This has been an ongoing issue on this PC which was formerly Windows XP/Office 2007. I have even gone so far as to replace the hard drive (to save old data) and installed Windows 7 and Outlook 2010 again. Joined domain under a different name. I have tried adding new Outlook profiles. Still, Outlook requires username and password at each open. At this point I am thinking it must be something with the user account, but I cannot find anything. Any ideas? BF --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist