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All-
As we know, one of the biggest bugs in Outlook for Mac 2016 is the ever-so-annoying repeated password prompt problem. This refers to the constant pop-ups that make it appear like Outlook is forgetting your password every few minutes, etc. The problem was much discussed during the Preview phase of Office for Mac 2016 but never corrected. I did some digging on the forums here and found other threads that covered this problem with slight variances, but the core issue is the same -- credentials are somehow not being stored properly or become corrupted during normal operation of the software. List of the relevant threads I found below. This list may not be comprehensive:
It seems odd that a major bug like this remained unresolved after the official release of Office for Mac 2016 ... and still hasn't been corrected! Per post responses on Microsoft's official Office Blog, they are looking into authentication issues with Exchange Server, but who knows what that means or how long that will take. Based on what I can gather:
e.g. username@DOMAIN vs. DOMAIN\username vs. username
A ticket submitted by forum member *Filip Herman* to Microsoft's technical support around early August 2015 indicated that Microsoft is aware of the problem and has a planned fix in progress. Obviously its been years since that. Others have submitted tickets to support since. Scroll to the end to read the most current progress.
I'd encourage everyone to mark this post, indicating that you "recommend this discussion." This thread has tens of thousands of views and hundreds of comments, so its clearly not an isolated issue. Unfortunately, my company abandoned the use of Outlook for Mac 2016 some while back because of this issue, so I don't have an active platform to test on anymore. However, keep trading ideas here as needed.
Best of luck-
Seattle_Expat
Using older versions of Outlook for Mac in business environments
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Going into preferences and changing my username from "******@domain.com" to just "username" worked for me. Great suggestion!
I'm running Office 2016 for mac v15.24 connecting to my corporate 365 account. My OS is 10.11.6. Outlook login notifications are popping when I initially open the program and every 90 minutes or so. I click yes to retry and it does allow me to connect and work. I've removed every entry from my keychain relating to Microsoft, office, exchange, or outlook. There are no patches available per the MS auto updater. I've removed my account and re-added after deleting all keychain entries. Mainly just wanting to subscribe to this thread for any potential new info from MS but if anyone has any suggestions for me, please let me know. Thanks!
Thanks Jim! I may have spoken too soon. It did prompt me again this morning, so after 3 solid days it still prompted me for my password. When I entered it, it allowed me access again, but once again when I went into the Preferences pane my password had once again been mysteriously removed. I put it back in and saved the setting and have been good again since. It still shows my password in the field, so that is good for now. It may not be a permanent solution, but one that gives longer intervals between prompts? I will keep my eye on it and report back!
I am glad you finally got the problem sorted out and that you shared the solution.
There are several different questions about this in the forums. If you feel up to being an exemplary citizen you might post the same information as answers to those questions.
15.17 was the only version that would not cause issues. I was in the fast update loop, but every update never resolved the constant prompts. So I just uninstalled it all and went back to the old version.
I did end up resolving my issue this weekend, by completely erasing my Macbook and installing a fresh copy of OS X El Capitan. After that, I installed select applications from my backup. When I reinstalled Office, this time I stuck with the "domain\username" login and it actually took. This is the first time that had worked. Usually the Exchange server would kick back an error that it could not connect. So I took that as something in my system must have been corrupt which was resolved with a clean install of the OS. I am all good now. Sucks to have had to go that far, but it is all working as it should now. And a lot faster too ;)
Thanks!