outlook not asking for password after changing password

What I don't understand is why these people are getting the password prompt ever since they changed their domain password. I realize the calendar issue is tied to the password issue. Is required), got no password prompt, and he was able to connect to the calendar. So I changed the proxy authentication back to Basic again, restarted Outlook (which She put her computer to sleep, woke it up, logged in, and then was able to connect to the sharedĪnother user could not get the password prompt to go away this morning no matter how often he input his password, and he also was unable to connect to the shared calendar. But she was unable to connect to a shared calendar. She entered the password and that was it. One user got the password prompt one time when starting Outlook. They all either shut down or restarted their computers since I worked on them Friday. There must be a GPO or setting in Outlook changing the proxy authentication to NTLM because this morning it was changed back to NTLM from Basic. So it's not every user account but a good number of them this is happening with. I haven't had the password prompt appear other than once the next time Outlook is opened after the password change, and that is to be expected. I've tried with our domain account we have setup there and with a test user account by changing the password on them but with the proxy authentication set to NTLM Windows 8.1 has been on the computers for 3-5 months so I don't think that's it either. Exchange 2013 has been in use there for about 6 months and Office 2013 longer than I did notice that the proxy authentication is set for NTLM so I changed it to Basic, restarted Outlook and there was no password prompt and theĪny idea why having the proxy authentication set to NTLM would cause this after the domain password changed? It has been set to NTLM rather than Basic for years now. I've checked and the account in Outlook does not have the box checked to always prompt for logon credentials. The new password and checking the box to remember it, but the password prompt keeps coming back. Their domain passwords are expiring and when they update them with a new one, Outlook starts prompting them for a password when they open it and periodically while Outlook is running. The users just started having the following problem. I have a client who has Exchange 2013 and the PCs run Windows 8.1 with Office 2013.

Outlook not asking for password after changing password