Forum Discussion
Outlook 2016 error 0xCAA70004
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.
- 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.
Dear,
I have the same issue when trying to add an Office 365 account :
followed by this error message:
Unable to add the account. I tried the support tool but with no success.
Can you please describe ste steps you perform using the tool? There is a lot of options...
Thank you!
Which steps did you take in the tool? I could not resolve the problem with the tool yet.
THX
Timo
Refer to this article as well for Symptom 4.
Thank you very much Jett Jones the diagnostics tool worked for me - I'd been struggling with the office sign-in problem for weeks!
