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Outlook 2019 keeps asking for password - Triggered when signing in to Office Account RRS feed

  • Question

  • We have Office ProPlus 2019 VL Outlook  x64 running on RDS. This is a new deployment so it's a fresh clean RDS with new profiles. Email is hosted Internal Exchange on-prem.

    Problem is Outlook started asking for password lately, i've read somewhere is Microsoft has added automatically autodiscover with some hot patches dont know if i can edit the registry to avoid this issue,

    its kinda frustrating for the users.

    is this registry going to fix my issue ?

    [HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity]
    "DisableADALatopWAMOverride"=dword:00000001
    [Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Autodiscover]
    "ExcludeExplicitO365Endpoint"=dword:00000001
    "ExcludeHttpsRootDomain"=dword:00000001

    your answer is appreciated it 


    Thursday, November 7, 2019 11:08 PM

All replies

  • Hi Julien,

    Does this happen to all users?

    Are your computers domain-joined?

    To check if this issue lies on Autodiscover, please follow the steps to test AutoDiscover and then paste the results here for further research.

    1. While Outlook is running, press and hold down the CTRL key, and then right-click the Outlook icon in the system tray or notification area on the lower-right corner of the screen.

    2. From the menu, select Test E-mail AutoConfiguration….

    3. Enter your email address and password.

    4. Clear the Use Guessmart and Secure Guessmart Authentication check boxes.

    5. Ensure that the Use Autodiscover check box is selected.

    6. Click test.

    Under Log tab, see if it succeeded.

    Besides, we can try opening Outlook in safe mode to see if the issue continues. Please exit Outlook, press Win key + R to open the Run command, type outlook /safe and then press Enter. This helps eliminate whether the problem lies on any third party add-ins.

    Any updates, please feel free to post back.

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    • Edited by Perry-Pan Saturday, November 16, 2019 2:59 AM
    Friday, November 8, 2019 2:51 AM
  • thank you for your reply,

    outlook in safe mode didnt fix it either, the box still pops up asking to log in.

    when i use the test for autodiscover, the result comes back " Succeeded (0x0000000)

    not all users are affect, few of them only 


    • Edited by Julien.AG Saturday, November 9, 2019 12:47 AM
    Saturday, November 9, 2019 12:47 AM
  • So, Autodiscover works as expect.

    Do these users have anything in common? Using RDS?

    Would you mind providing a screenshot on the prompt for credential window?

    Please also have a look at Event Viewer when the issue occurs and see if any fault module will be recorded there so that we can do more research.

    What’s the detailed version of Outlook 2019? Try installing available updates to test the results.

    Besides, this could also be caused by incorrect credential cached in Credential Manager. Follow the steps above to clear them:

    1. Click Start, click Control Panel, and then click Credential Manager.
    2. Under Windows Credential, Locate  the set of credentials that has Outlook or account address in the name.
    3. Click the name to expand the set of credentials, and then click Remove from Vault.

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    • Proposed as answer by Perry-Pan Wednesday, November 13, 2019 8:09 AM
    • Unproposed as answer by Perry-Pan Tuesday, November 19, 2019 4:29 AM
    Monday, November 11, 2019 9:11 AM
  • Any updates with this issue?

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Wednesday, November 13, 2019 8:09 AM
  • I am also having the same issue with many, but not all clients.  It seems to only be happening to those that have Office 2019 installed.  I have cleared credentials in credential manager, checked autodiscover but issue is still happening.
    Thursday, November 14, 2019 8:12 PM
  • We also started having issues today....only ProPlus (1902 and 1908) installs of office, 2013 and 2016 STD seem to work fine.  We don't have office 2019.

    Our auto discovery test succeeds as well, tried clearing credentials and starting a new profile.  When a new profile is made it doesn't detect that we're using exchange and asks for the credentials right there.  If you save the credentials things seem to work fine. Starting a new profile on 2013-2016 works as expected.  Tried reinstalling Office but had same result. 

    I also tried Outlook in safemode and had the same result.

    For us this is affecting about 100 users. 

    Any help anyone could provide would be appreciated. 

     

    Thursday, November 14, 2019 11:07 PM
  • Hi

    After further research, I find that starting in Outlook 2016 version 16.0.6741.2017, Microsoft has enabled a new feature called Direct Connect to Office 365. What this feature does is connect Outlook directly to Office 365 if Autodiscover is not working. This is great feature but a network hiccup may cause your mailbox to connect to Office 365 rather than your on premise Exchange, even with a valid autodiscover record.

    You can stop Outlook from checking Office 365 for settings by setting a registry key.

    HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\office\16.0\outlook\autodiscover

    DWORD: ExcludeExplicitO365Endpoint

    Value = 1

    (Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.

    Regards

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    • Edited by Perry-Pan Saturday, November 16, 2019 3:02 AM
    • Proposed as answer by Perry-Pan Tuesday, November 19, 2019 4:29 AM
    Saturday, November 16, 2019 3:01 AM
  • Just check if there are any updates with this issue.

    Here I will provide a brief summary of this post for your information.

          

    [Issue Symptiom]

    ====================

    Outlook 2019 keeps prompting for credential

        

    [Possible Cause]

    ====================

    1. Third-party add-in

    2. Incorrect cached password in Credential Manager

    3. Direct Connect to Office 365 feature

        

    [Troubleshooting Steps so far]

    ====================

    1. Clear cached password in Credential Manager
    2. Open Outlook in safe mode
    3. Disable Direct Connect to Office 365 feature via ExcludeExplicitO365Endpoint registry.
    4. Install available updates to Office
    5. Test AutoDiscover feature via Test Autoconfiguraiton Tools
    • Edited by Perry-Pan Monday, November 18, 2019 6:26 AM
    Monday, November 18, 2019 5:58 AM
  • Greetings

    We've tried the registry entry mentioned above, and it has not worked for us.

    Also, the path shown above isn't correct for Windows Server 2019 or Windows 10.

    Autodiscover is in

    Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\AutoDiscover

    This is what happens for all users on any machine:

    Note that there are 11 entries (11 login attempts) that have to be made before it goes to the right autodiscover information.  Is there any other way to stop Outlook from doing this??

    This is happening across the board for all users.


    Alert from Microsoft Forum

    Saturday, February 8, 2020 4:34 AM
  • So the issue is truly with Microsoft.

    There's only one fix and that is the registry fix, however, that fix is per person, per machine.

    We've had to run the fix ANYTIME that a user is put onto a system, workstation or remote access server, and it must be done seperately.

    We did ask Microsoft Tech Support for a way to push it via GP but we've been getting the runaround on that one.


    Alert from Microsoft Forum

    • Proposed as answer by DarkAngel11 Wednesday, May 13, 2020 9:37 PM
    Wednesday, May 13, 2020 9:37 PM