In this post, we will see how to resolve Error caa20001, There’s a more permanent way to sign in to Microsoft Teams. Developed by Microsoft, Microsoft Teams is a part of the Microsoft 365 family of products, and it helps keep the team connected, informed, and organized. But while trying to login into Microsoft Teams, users have reported coming across Error caa20001. The message says,
Error code – caa20001
There’s a more permanent way to sign in to Microsoft Teams. If you’re having trouble completing the process, talk to your IT admin.
Error caa20001, There’s a more permanent way to sign in to Microsoft Teams
Befor you begin, Log out and Log In to Teams and see if that makes the error go away. If not then here are some workarounds you can try to fix Error caa20001, There’s a more permanent way to sign in to Microsoft Teams.
- Restart Microsoft Teams
- Connect the Teams account
- Clear Microsoft Teams cache data
- Allow Teams through Firewall
- Disable third-party antivirus program
- Make Registry Edits
- Repair or Reset Microsoft Teams.
Now let’s check out all these solutions in detail.
1] Restart Microsoft Teams
The first step you should take is to restart Microsoft Teams. As it turns out, the issue can result from a temporary glitch in the application. In this case, restarting the application is the best bet for you.
Go through the restart process and check if it fixes the problem. If yes, you are good to go. But in case the problem continues, try the next solution on the list.
See: Microsoft Teams crashing or freezing during meetings
2] Connect the Teams account
The problem in question can occur if the Microsoft Teams account isn’t connected. You will have to manually connect the account to fix the problem. Below are the steps to do it.
- Open Settings by pressing Windows + I shortcut key.
- Click on the Accounts option present at the left final of the screen.
- Select Access work or school.
- Click on Connect option present in the following window.
- Now enter your login credentials to connect with your account.
If you already had your account connected, select it and choose the Disconnect option that pops up. Click on Yes to the prompt that pops up on the screen. After disconnecting, reboot your system and connect the account again. Check if it fixes the problem.
3] Clear Microsoft Teams cache data
The next step on the card is to clear Microsoft Teams cache files/data. As it turns out, if Microsoft Teams cache files have been corrupted for some reason, you will face the problem in question. Below are the steps you need to follow to clear Microsoft Teams cache data.
To begin with, close Microsoft Teams and ensure that none of the associated services is running in the background.
Now, open the Run dialogue box by pressing the Windows + R shortcut key.
Type the following location in the space provided and click on the OK option.
C:\Users\%username%\AppData\Roaming\Microsoft\Teams
In the destination, open the cache folder.
Select everything inside, right-click and choose the Delete option.
That’s it. Reboot the system, and access Microsoft Teams. Check if you are still coming across the error message. If yes, try the next solution on the list.
See: Fix Microsoft Teams Error 80090016
4] Allow Teams through Firewall
Your antivirus or Windows Defender Firewall can block Teams from performing some of its tasks including logging in. You need to make sure that your defender is allowing Teams from accessing Microsoft’s server. So, go ahead and allow Microsoft Teams through Windows Firewall, and whitelist it, if you are using an antivirus.
5] Disable third-party antivirus program
The error message will pop up if you have recently installed any security, antivirus or accelerator application. If this is the case, disable it temporarily, and check if it fixes the problem.
6] Make Registry Edits
The Error caa20001 will pop up when Microsoft Teams tries to get a sign-in token from online servers. Microsoft Teams desktop application uses WAM (Web Account Management) for user authentication. And when WAM fails, Teams go to ADAL (Microsoft Azure Active Directory Authentication Library) for authentication purposes.
But if the admin has disabled Modern authentication for Microsoft Teams, you will face the problem in question. Contact the admin and ask them to enable the option. Additionally, you need to ensure that WAM and ADAL are enabled on your device as well. You can check it by following the below steps.
Open the Run dialogue box by pressing the Windows + R shortcut key.
Type regedit and press the enter key.
Navigate to the below location.
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity
Check if you find either of the below entries in the location.
- DisableADALatopWAMOverride
- DisableAADWAM
- EnableADAL
If yes, delete it.
7] Repair or Reset Microsoft Teams
If one of the steps were helpful, you could consider repairing or resetting Microsoft Teams via Settings.
If nothing helps, you may need to contact your IT admin.
Read : Microsoft Teams Camera greyed out or not working
Why am I getting an error on Team?
One of the significant reasons behind Microsoft Teams errors is wrong credentials. If you have entered incorrect login credentials, you will face different errors in the application. But in case you still face the problem even though you are entering the correct information, contact your IT admin.
How do I fix error code caa2000b?
The Microsoft Teams error code caa2000b stops the user from accessing the account. You can try the below steps to fix the problem.
- Restart the application
- Clear Microsoft Teams cache
- Reset the Internet Settings.
That’s it
