Hello,
I have the same issue, Outlook since KB2986204 keep prompting for login/password.
But I'm unable to uninstall the update, how did you manage to do that ?
Did you get in touch with someone to help us ?
This issue seems to grow up (http://community.office365.com/en-us/f/172.aspx?Sort=Active&pi14112=1)

Go to "Control Panel", "Program and Features", then click on the left side of the screen on "View Installed Updates".  Somewhere in there you should see an update with the KB article KB2986204.  Click to uninstall.

The update appear multiple time, its ok for now ...

Just found this article.  Hopefully this will have a fix for the issue.

http://blogs.technet.com/b/exchange/archive/2014/10/29/oab-improvements-in-exchange-2013-cumulative-update-7.aspx

.

• Edited by George.B.Summers Friday, November 21, 2014 5:38 PM

.

• Edited by George.B.Summers Friday, November 21, 2014 5:38 PM

Is someone in Microsoft aware of this issue?  There are way too many me toos on this post.

.

• Edited by George.B.Summers Friday, November 21, 2014 5:38 PM

The issue with the OAB download not working has been investigated by the Outlook Product Team. They are working on a fix which is expected in the November 11th Public Update.  In the meantime if you are experiencing the issue you can uninstall the update, KB 2986204 to workaround the problem.   If you happen to be running the Click to Run version of Office you will not see the update to uninstall.  Instead, please follow the instructions in this KB to revert to the September public update, https://support.microsoft.com/kb/2770432.  If there are any changes to the fix release date I will post back and update the forum thread.   

So update KB 2899504 not only does not fix the credential loop, it re-breaks anyone who has hidden KB2986204.  Now we have to uninstall and hide that update as well.  Is this going to happen every month now?  Is there some server-side setting that needs to be changed to make exchange log in work with these updates?

The OAB download issue is supposed to be fixed in the November 11 2014 updates, http://support.microsoft.com/kb/2899504.  Double check the version shows correctly.  It should be 15.0.4667.1000 or 15.0.4667.1002 depending if C2R or MSI.  What exactly is the issue that you are seeing? 

The OAB download was only part of the problem.  The bigger issue with this update, and 2899504, is that no users with these updates installed are able to authenticate.  It keeps repeatedly asking for credentials.  If they cancel out of that, they can still use some features.  Inbox appears to update, however mail will not send, nor can they access public calendars.  And the pop up keeps coming back so frequently that it interferes with their ability to work.  Once these updates are removed they connect to Exchange normally and everything's fine.

Brian,

Can you please open a support case for us to investigate the issue.  We are tracking a couple bugs with OAuth and MAPI/HTTP but nothing that matches what you are seeing.  So far I am not seeing any other support cases for this issue.  Also, is this an on prem issue or are you using the O365 service?

• Edited by Gabriel BrattonMicrosoft employee Thursday, November 13, 2014 6:24 PM

Brian,

Can you please open a support case for us to investigate the issue.  We are tracking a couple bugs with OAuth and MAPI/HTTP but nothing that matches what you are seeing.  So far I am not seeing any other support cases for this issue.  Also, is this an on prem issue or are you using the O365 service?

• Edited by Gabriel BrattonMicrosoft employee Thursday, November 13, 2014 6:24 PM

Brian,

Can you please open a support case for us to investigate the issue.  We are tracking a couple bugs with OAuth and MAPI/HTTP but nothing that matches what you are seeing.  So far I am not seeing any other support cases for this issue.  Also, is this an on prem issue or are you using the O365 service?

• Edited by Gabriel BrattonMicrosoft employee Thursday, November 13, 2014 6:24 PM

I too am not convinced that this update is completely right. I have a user who opens a number of shared mailboxes, and now Outlook won't connect to the server for Foreground/Exchange Mail operations. The Session Types Background and Cache seem to work ok, but not Foreground.  It worked before the update, stopped immediately after they were installed.

*sigh*

This is for the office team:

Is it really that difficult to release an Outlook Version that simply works?

It doesn't matter which feature you look at - they're all buggy.

Especially Autodiscover is a mess if you work with Exchange 2013. Outlook never get's it right... (maybe you should finally start using the Autodiscover Webservice and not the legacy XML file...like Lync does!)

So I ask myself: Are you short on resources? No manpower for on premise testing?

I work with Outlook since the first Version. But it got worse an worse over the years...

Christian

Hello,

I fully agree to Christian. Same problem here, we have to fix it manually which is an enormous effort for us.

I would really kindly ask the microsoft team to bring a fix ASAP.

Really disappointed.

In my case, I was able to resolve the user who was having issues by re-entering his credentials to one of the mailboxes, and then everything started working. While my problems have all been cleared, it still appears to me that there is much work to do, Outlook in the old days used to just connect to Exchange and worked rock solid, it just isn't that stable anymore.

Apologies, but I've never opened a support case before and am not sure how.  I also don't have access to the back-end of our email system.  I do know that our email system was migrated last winter from on-prem to O365.  (I would have responded sooner, however I did not get an email alert that this thread had been responded to even though I have it marked for alerts).

Thanks,

Brian

Brian,

You will need to find the Office 365 Portal Administrator in your company to open a support case.  Only the Portal Admin can open a case.  I have been watching for any new issues and so far I am not seeing us getting any unexpected volume on authentication related problems.  It is possible there is some configuration issue that is specific to your tenant. 

The OAB download issue is supposed to be fixed in the November 11 2014 updates, http://support.microsoft.com/kb/2899504.  Double check the version shows correctly.  It should be 15.0.4667.1000 or 15.0.4667.1002 depending if C2R or MSI.  What exactly is the issue that you are seeing? 

I had not installed KB2986204 because of this issue but I did install KB2899504 today and KB2986204 is no longer being offered and I have not OAB issues with KB29899504.

Unfortunately, I'm having the issue with both KB2986204 and KB2899504 where users are constantly asked for their credentials.  My only solution was to uninstall the patches and remove the newly stored credential items created in Credential Manager when trying to log into Outlook (the ones that don't have "Outlook" in them).  Could we get an update from Microsoft?  Thank you.

Delaney,

There have been some additional fixes since the November updates. Please test by installing all of the latest updates from Windows Update. If you are still seeing auth prompts after that open a support case for us to investigate further.  Are you on Office 365?  Did the auth prompt issue just start happening?

Gabriel,

The prompts started happening when I installed both 204 and 504, and stopped after I uninstalled them.  That was back in December.  I've installed all other Office 2013 updates that have come out since then, but have not reapplied these two, as I was waiting to see if another Outlook update would come out before trying again.  Yes, we are on Office 365.

Heads up theres another update causing a credential popup:

KB2956087

It was been install on our machines today.

So looks like we have another one this time: KB2956170

Causing credential popup and stops as soon as this is uninstalled.

This is 4 now! what is going on MS??

Anyone else experienced this?

Derik,

I am not aware of any auth prompt known issues for the Outlook February or March PU's.  Are you on Office 365 or on premise?  Since there are no known major issues it would be best to open a support case to investigate further. 

We have an on premise 2013 box CU7.

We've had this same issue with the following:

KB2986204

KB2899504

KB2956087

and now KB2956170

I have found a couple of machines that have install the last one OK with no prompt so looks to not affect everyone but everyone has the same update level and settings.

I'm not sure even how I go about opening a support request?

This has got to be a widespread issue, not only affecting OAB download but also Autodiscover.

Reference: https://social.technet.microsoft.com/Forums/office/en-US/ed448c52-1dfd-49ec-bb45-20750bc87490/autodiscover-broken-after-office-update?forum=exchangesvrclients

Microsoft, please sit up and take notice!  As someone mentioned above, there are way too many replies of "me too" here.

I add a "me too" as well.  I had originally found this thread several weeks ago and fixed my outlook login prompt issue by removing KB2899504.  Now I'm having the issue again, and came here looking for an update.  Look like I have three more updates to remove!

It appears this has now been resolved, at least for us anyway!

After installing KB3039799 password prompts have stopped and all seems to be working as advertised

OK so I look to have been a little premature, this has not resolved it for us just some machines seemed to stop asking for credentials but are now back to asking again.