I have seen this happen if their Outlook is trying to open another user's folder. Not by adding the 2nd user to their profile, but rather because they used "File>open other user's folder" in the past. If they had done this in the past, Outlook attempts to display the 2nd user's calendar when you click on "calendar". I would check to see if Outlook is listing any other users' calendars. If so, right click and delete those calendars from the view. Worked for me.
From: [email protected] [mailto:[email protected]] On Behalf Of xyz Sent: Tuesday, July 02, 2013 8:02 PM To: [email protected] Subject: [Exchange] OUTLOOK 2010 client frequently prompts for password in pop up screen. Greetings, Struggling with this a bit as this appears isolated to a specific user on campus. EXCHANGE 2010 SP2 UR3 WIN7 SP1 OUTLOOK client settings ( these are default OUTLOOK campus rollout settings for a long time with no major issues) Cached Mode OUTLOOK CLIENT - Security Logon Network Security = Negotiate Authentication Seconds Until Server Connection Timeout = 30 User reports this problem happened after required password change. User does shut down computer each night. User reports that after entering credentials (the new password works) in the pop up screen, this works for the rest of the day, but the cycle starts again the next day. I am wondering if there is some "cache" on user box somewhere that is causing this? Hoping for some input to get me on the right track, as no other users have reported this issue to date. Thanks for your help. Dana .
