Forum Discussion

Brass Contributor

Mar 04, 2020

Solved

Error code - caa30190

Unable to sign into Teams Desktop client after updated username. -application has been reinstalled. -reinstalled mail account for windows. able to access all other Microsoft applications. -able to...

microsoft teams

Jorgga
May 05, 2020
RobertWPBI had the same problem on W10. Ran teams in compatibility mode as W7 and worked on first try.

pallav_kd

Copper Contributor

Oct 07, 2020

Hi RobertWPB ,

I have had similar issue and I too have tried all the steps mentioned by you. However finally the below steps helped me:
1. Go to %AppData%\Microsoft\teams\.

2. You can see there are 4 .json files and 1 logs files. Just deleted these 5 files and nothing else.

3. Restarted teams. Then I was able to login successfully.

Please try and see if this helps.

Regards,
Pallav