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adpinc61's avatar
adpinc61
Copper Contributor
Jan 26, 2021

Outlook 365 constantly asking for password authentication

All,

For the last month or more, Outlook constantly asks me for my email password for 2 different email providers.  This is not happening on my iPhone nor MacBook.

 

I have read dozens of posts to resolve this issue and nothing works.  I deleted Office365 and re-installed.  Still problems.


This is really frustrating.


Does anyone have a REAL solution?

  • AlbertoDalCero's avatar
    AlbertoDalCero
    Copper Contributor

    adpinc61 

     

    Hello, i have solved it like this:
    1 open the RegEdit:
    2 goes to: HKEY_CURRENT_USER \ Software \ Microsoft \ Office \ 16.0 \ Common \ Identity
    3 create a DWORD key named: EnableADAL
    4 assign (if not already) the value 0
    5 Reopen Outlook and enter your credentials

     

    After more than 3 months the customer did not call me again

     

    Alberto 

  • Pablomcse's avatar
    Pablomcse
    Brass Contributor

    adpinc61 Good evening, 

     

    If you email provider is using Modern Authentication or enforced MFA, you can first update- upgrade your Office client Apps. 

     

    After that, I recommend you to delete your Windows credentials of these accounts from Credential Manager. Next time you open Outlook app, a new token will be created when you type the password and it should work. 

     

    I hope this can help. 

     

    Good luck!

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