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Alex Melching's avatar
Alex Melching
Iron Contributor
Dec 13, 2017

Outlook 2016 error 0xCAA70004

Some users report this error message in Outlook 2016.  Unable to determine the root cause of the message.  Information on the error code is next to none.  Any thoughts...?

 

  • SunilSherkhane's avatar
    SunilSherkhane
    Copper Contributor

    Alex Melching 

     

    Go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity

    Add a new entry of type REG_DWORD with the name EnableADAL with value 0

     

    Remove the DisableADALatopWAMOverride entry if it exists.

  • Kleber Ramos's avatar
    Kleber Ramos
    Copper Contributor

    Hi, i had the same problem and corrected it like this:

    Access the following registry path

    HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity

    Add a new entry of type REG_DWORD with the name EnableADAL with value 0

    Remove the DisableADALatopWAMOverride entry if it exists.

    Automatically when opening the outlook it will open the popup requesting user and password.

  • Jett Jones's avatar
    Jett Jones
    Copper Contributor

    I was getting this same Pop-up, and I was able to fix it by running the office365 diagnostics tool:

    https://diagnostics.office.com/

     

    The diagnosis was invalid cached credentials, and the tool automatically cleared credentials and restarted outlook. 

    I recently updated office on my laptop - so credentials may have been cached since before that, resulting in the failure.  That's mostly guessing at a cause though.

    • hmacfarlane's avatar
      hmacfarlane
      Copper Contributor

      Thank you very much Jett Jones the diagnostics tool worked for me - I'd been struggling with the office sign-in problem for weeks!

    • Michael Hendricks's avatar
      Michael Hendricks
      Copper Contributor
      The diagnostic tool worked for me, thanks! I have seen this issue with a number of our users (random and unexplained) however the external DNS does not appear to be our problem. Our helpdesk technician usually ends up reinstalling Office and that solves it. But when it happened to my own computer, the reinstall only lasted a few days then the popup returned. I downloaded the tool and it resolved it within minutes. I hope the fix stays this time! Thanks for the post Jett.
      • Timo Riemer's avatar
        Timo Riemer
        Copper Contributor

        Which steps did you take in the tool? I could not resolve the problem with the tool yet.

         

        THX

        Timo

    • Alex Melching's avatar
      Alex Melching
      Iron Contributor

      After extensively working with Microsoft Support engineer, we determined that it was an external DNS issue.  As the error is intermittent at times. When the pop-up was present, other Microsoft URLs would not resolve.  Prime example was https://login.microsoftonline.com, but https://outlook.office365.com would.  Other websites and Office 365 services are unaffected. We were not able to determine if the DNS issue was with the local Internet provider or a global provider.  It's not much to go on, but somewhere to start.

  • Boško Bezik's avatar
    Boško Bezik
    Copper Contributor

    I have done a quick search about that error code and it seems that somebody has already had a similar issue. It seems that Outlook thinks that you are disconnected from the internet.

    Here is the link to the original thread: "https://goo.gl/3Wr2F8"

    • Alex Melching's avatar
      Alex Melching
      Iron Contributor

      I looked at the article you mentioned and it has nothing to do with this error code.

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