KB2986204 - After installing users being prompted for a username and password

After client machine have installed this update they are now being prompted for a Username and password when launching outlook. Setting up a fresh copy of outlook also prompts.

Is anyone else having this same issue?

October 16th, 2014 10:07am

Hi,

I haven't received any report about this issue yet. If possible, uninstall this kb on a client to test, check if this issue will be gone.

I also suggest you check some options in Outlook as mentioned in this article:

https://social.technet.microsoft.com/Forums/en-US/bcd2d9c2-1a1b-4446-bf32-69fee8cdf11b/why-does-outlook-keep-prompting-for-password?forum=outlook

Check whether Outlook is configured to prompt you for credentials, and configure Outlook to use NTLM Authentication especially.

For your reference:

https://support.microsoft.com/kb/2986204

Regards,

Melon Chen
TechNet Community Support

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October 17th, 2014 3:22am

Hi

If we uninstall it the problem is resolved.

Following through the link everything is setup as it should be on both Outlook and Exchange.

This update has installed it self on the majority of machines.

Anything else we can check?

October 17th, 2014 8:06am

Yes, we found x86 Office running on x64 windows causes the same problem. Thought it was only with our Office 365 users. It appears to be more wide spread than that. We are also finding that if the users have not created a outlook profile on the machine before it refuses to create one for them on launch as well when the update has been applied. Have worked through several reports. Will be notifying Microsoft today. Expected we were not the only ones experiencing this but there has been no update to the KB.
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October 17th, 2014 1:40pm

We found that we have to uninstall the update 2 - 3 times before it is actually removed from the system and functionality returns.
October 17th, 2014 1:41pm

Had exactly the same issue... we use office365.

We have set it to remove from all machines via WSUS.

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October 20th, 2014 5:35pm

I have it too, Office 365 users, I have exhausted all other options I started to remove outlook updates the first one I removed was KB2986204 and outlook is now functioning as it should.  I will pull the update from WSUS for now and remove from affected PC's.
October 27th, 2014 11:13am

Hi,

It seems the update has caused some issues, the temporary workaround is to uninstall the update and wait for the fix. As soon as there is a fix, I will let you know.

Regards,

Melon Chen
TechNet Community Support

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October 28th, 2014 9:16am

I've had the same issue. Uninstalling that update resolves the credential prompt. Does anyone know if a fix has been released yet?
November 5th, 2014 10:22am

Watch out there is another one about with the same result KB2899504... I assume others are having an issue with this also?

How has this happened again???

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November 13th, 2014 10:37am

Uninstalling this update aswell as KB2986204 resolved my issue. I hope Microsoft are aware of this issue. I've submitted a ticket request with them so I will pass on my findings.
November 26th, 2014 10:18am

Watch out there is another one about with the same result KB2899504... I assume others are having an issue with this also?

How has this happened again???

Same issue here! Pffff. Installed KB2899504 and same issue again. 
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December 3rd, 2014 3:46pm

Is a fix available now (2 months later)?

Or is the only solution still to uninstall KB2986204 ?

I have exactly the same problem since early Dec. once in a while with different users. Very annoying!

January 31st, 2015 1:18pm

Same here.  I've been waiting on a solution as well to install both KB2986204 and KB2899504.  Could we get an update from Microsoft?  Thanks.
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February 3rd, 2015 3:00pm

Heads up there's another update causing a credential popup:

KB2956087

It was been install on our machines today. 12/02/2015
February 12th, 2015 1:26pm

Confirmed the same issue here. We are blocking:

KB2986204
KB2899504
KB2956087

as these all cause password prompts to appear on domain joined PCs that should be using NTLM.

We are Exchange 2013 CU6 running a mix of x86 & x64 Win7 clients all on x86 Office 2013 SP1.

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February 19th, 2015 11:34am

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?

March 12th, 2015 1:46pm

Having the same issue with the last 4 outlook updates including the latest  march 2015 (KB2956170)

Glad to see its not just us


  • Edited by St.Clair Friday, March 13, 2015 5:57 AM
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March 13th, 2015 5:56am

Having the same issue with the last 4 outlook updates including the latest  march 2015 (KB2956170)

Glad to see its not just us


  • Edited by St.Clair Friday, March 13, 2015 5:57 AM
March 13th, 2015 5:56am

We are also having the same issue... Unbelievable that it can go on for so long without resolution.

Our users are actually asking to be switched back to Office 2010. I am not even joking.

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March 15th, 2015 3:20am

I've been struggling with the same issue for months, and resolved it today.  To fix the problem, here at least, I had to enable Digest Authentication for the Autodiscover entry under Default Web Site on my Exchange Servers' IIS.  I was then able to create a profile on a patched machine and access email.  Old profiles on machines broken by the patches had to be recreated, then they also worked.

Jerod 

April 21st, 2015 8:17pm

For anyone still watching this issue, we're now up to 5 updates that cause this behaviour, we're having to block these on WSUS to prevent our customers being prompted for passwords on domain joined machines using NTLM.

KB2986204
KB2899504
KB2956087
KB2956170
KB2965270

Further progress since my last post in February. We upgraded to CU7 and now CU8 and the problem remains, but we think we have tracked the issue and have a case open with MS. If anyone else is able to test and confirm our findings it would be helpful to know, below are the key aspects to look for:

- Outlook 2013 has one of the above updates installed.
- The UserPrincipalName (abc123@domain.com) is different to the PrimarySMTPAddress (a.b.carey@domain.com) of the mailbox.
- The computer is domain joined.
- Mapi/HTTP is configured in the Exchange 2013 organisation.
- NTLM/Negotiate is used as the authentication mechanism.

If all of the above aspects are true for your configuration and you are able to re-produce the password prompting try altering the Mailbox PrimarySMTPAddress so that it's the same as the UserPrincipalName.

In our testing the issue went away when the UserPrincipalName and PrimarySMTPAddress matched, not that it gives us a solution as our customers are quite attached to their vanity email addresses, but it does highlight a specific type of behaviour under specific circumstances.

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April 23rd, 2015 4:58am

Ukjone:

I can confirm we have the exact same as you have tested it and it does go away if I change the primary address to UserPrincipalName!

Have Microsoft given you any sort of solution yet?? Please let me know if they do im getting fed up of these updates causing issues.

April 30th, 2015 9:49am

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.

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May 13th, 2015 11:14am

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.

May 19th, 2015 3:30am

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