Error code - caa30190

RobertWPB I found that the desktop we had experiencing this issue, there were too many sign-in option accounts within the settings. Upon removing all the accounts that are no longer used  I was able to sign into a new account on the machine. 

RobertWPB 

Exit teams app

in windows go to settings -> Accounts -> Access work or school -> Disconnect the connected account and add it again.

RobertWPB 

Steps you performed to fix the issue is by indeed correct but one secret step is missing here. This fix i discovered  when i had the same issue.

At first, Login to your old user account/any other user accounts which are already logged into this machine after disconnecting the internet and uninstall the teams from programs. once teams is uninstalled delete  C:\Users\%username%\AppData\Roaming\Microsoft\Teams folder.

Now, Sign out from that account and sign back in to your user account. uninstall the teams from programs. once teams is uninstalled delete  C:\Users\%username%\AppData\Roaming\Microsoft\Teams folder.

Install teams now. it should work for you :).

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

RobertWPB 

Hello,

I had the same problem recently and I want to share what I have done to solve that, maybe it will be helpful.

1- Right click on the MS Team app -> properties -> "compatibility" tab -> "compatibility mode" section -> Tick the "Run this program in compatibility mode for" -> windows 7 -> Apply -> Ok

2- Right click on the MS Team app -> Run as administrator -> close it (without sign in)

3- Right click on the MS Team app -> properties -> "compatibility" tab -> "compatibility mode" section -> Remove tick the "Run this program in compatibility mode for" -> Apply -> Ok

4- Open the MS Team app and sign in.

I had a similar issue with my Teams users. I’ve done one of two things. For me the issue has seemed to be around when users do a password reset.

1. Enter the wrong email at first. So if your company email is firstlast@company.com, I’ll enter firstlast@company.org. Then once it tells me it is the wrong email, I’ll put the correct one in. Or

2. Make sure I add their @company.com account to their PC. I go to PC Settings > Accounts > Add Work Account. Usually I only see their domain account there. So their O365 account is missing. Once I add it, it usually fixes the issue.

Might not be the issue you are having, but worth a shot.

RobertWPB 

RobertWPB 

I got the same problem as well for a week.

Here is what I have done to be able to log in again:

1) Close Teams if open

2) Open the file: C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Teams\settings.json

3) Change the value "enableSso": true to "enableSso": false

4) Open Teams

5) Log in again

I hope it can help other people as well

Best regards

A Team user

After attempting all previous listed solutions over and over and on different combinations.
This sequence worked for me this morning:

-Windows Settings > Accounts > Access work or school and REMOVE account
-Reboot computer.
-Uninstall and Reinstall TEAMS from Microsoft.com
-Reboot computer.
*Do not launch any other MS application before login to TEAMS
-from desktop TEAMS icon , right click and "Run as Administrator"
-Select to login using a different account. (Even if your account shows up as default)
-enter your account credentials.

So far I have closed the application and I was able to re-open it.
I will update if further issues arises.

RobertWPB 

I got the same error code do we have an update ???