Greetings, I seem to have a strange problem with some clients getting prompted for credentials or the "Need Password" notification on the bottom right corner of Outlook would display. This has happened to me on my desktop machine and Outlook is running and I leave for the night, the next morning I would maximize Outlook and the "Need Password" notification would appear on the bottom right corner of Outlook. This would happen with no predictable date or time but every so often say a few weeks or so this would occur. I don't see any errors in the windows logs on my exchange 2007 server. If I reboot the desktop and log back into the domain, then Outlook would connect to the exchange server just fine without the prompt. What would cause this? is this a certificate issue or domain user account issue? How do I go about troubleshooting and narrowing down the root cause? Any feedback is greatly appreciated, thanks! van

On Tue, 21 Sep 2010 15:20:59 +0000, fubuki99 wrote: >I seem to have a strange problem with some clients getting prompted for credentials or the "Need Password" notification on the bottom right corner of Outlook would display. This has happened to me on my desktop machine and Outlook is running and I leave for the night, the next morning I would maximize Outlook and the "Need Password" notification would appear on the bottom right corner of Outlook. This would happen with no predictable date or time but every so often say a few weeks or so this would occur. I don't see any errors in the windows logs on my exchange 2007 server. If I reboot the desktop and log back into the domain, then Outlook would connect to the exchange server just fine without the prompt. What would cause this? is this a certificate issue or domain user account issue? How do I go about troubleshooting and narrowing down the root cause? Any feedback is greatly appreciated, thanks! Is the Outlook profile configured to use RPC-Over-HTTPS? Is the server it connects to configured to use only Basic authentication? If it is, then Outlook has probably lost the connection to the mailbox server and switched to the CAS where it's prompted for credentials. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP