This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
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.
I def see the keychain entry. But it does remove the password from the account preference pane. I manually re-enter it there when I see it missing. But see my later post about a working fix I am using.
Been having the same problem since March. I am now in the Office Slow Ring and just got a new update but still having the annoying pop up. Seems to happen after 24 hours the prompt will occur. MSFT please FIX
We have one user out of 8 who is having this issue. all users are using the latest 15.22 version.
the only thing I can find different, about the systems is this one user is listed as a Retail License vs office 365 subscription like the rest of us.
Any thoughts?
P.S. I agree, for this issue to have carried on for over a year now, MSFT is just dragging their feet. It's bad enough that they only port Office to Mac OS to start with, rather than code it from the ground up; but to go a year with this type of common issue, is just ridiculous.
OSX login password matching Exchange password didn't resolve the issue for me. Within my own wifi everything is fine, but other WiFi (remote) keep on asking for PW. Sometimes it works for 10 minutes, sometimes just a few seconds before it asks again.
same issue here. It's mostly the Outlook prompt, but occasionally the modern auth comes up with the organisation logo.
Oddly, the built-in OS X Mail app works without a hiccup, but I shouldn't have to resort to that when using Microsoft software with a Microsoft platform.