If you can’t log in to Microsoft Teams due to the error code CAA20008 on your PC, this post will help you fix it. Some Teams users have reported facing this error with the following error message:
Something went wrong
We couldn’t sign you in. If this error persists, contact your system administrator and provide the error code CAA20008.
This error could result from various factors, including an issue with Microsoft’s Sign-in service, incorrect date and time, or corrupted app cache.
Fix CAA20008 Teams Error Code
If you keep getting error code CAA20008 when trying to sign into Microsoft Teams, you can fix it using the below solutions:
- Perform these preliminary checks.
- Set the correct date and time on your PC.
- Delete the Teams cache.
- Contact your IT administrator.
1] Perform these preliminary checks
There are some preliminary checks that you can perform to fix this error.
- Ensure that your internet connection is working fine.
- Restart your PC as well as your router and then try and see.
- Verify the server status of Teams and make sure the servers are not down.
- Try logging into Microsoft Teams in a web browser and see if you can access your account.
2] Set the correct date and time on your PC
Incorrect date and time settings lead to authentication issues, so, set up the correct date and time on your PC and check if the error is fixed.
- Open Settings using Win+I and go to the Time & language tab.
- Now, click on the Date & time option.
- Next, switch on the toggle associated with the Set time zone automatically and Set time automatically.
- Once done, reopen Teams and see if you can sign in without this error.
Read: Fix Office apps Sign-in error 0xC0070057 on Windows.
3] Delete the Teams cache
A corrupted cache can also cause login issues in Teams. So, try deleting the Teams cache and then see if the error is fixed. Here are the steps to do that:
Ensure Teams is not running in the background, and then open the Run command box using WIn+R and enter %appdata%\Microsoft\Teams in the box.
Delete files from the following locations:
- %appdata%\Microsoft\Teams\application cache\cache
- %appdata%\Microsoft\Teams\blob_storage
- %appdata%\Microsoft\Teams\Cache
- appdata%\Microsoft\Teams\databases
- appdata%\Microsoft\Teams\GPUcache
- appdata%\Microsoft\Teams\IndexedDB
- appdata%\Microsoft\Teams\Local Storage
- appdata%\Microsoft\Teams\tmp
Finally, reopen Teams and see if the CAA20008 error code is fixed.
See: Fix Error Code 50058 in Teams.
If the error persists, you can contact your IT administrator for further assistance.
Read: Fix Microsoft Teams Sign in Error Codes and Problems.
How to fix Office 365 error code CAA20008?
Error code CAA20008 is also reported with Office applications, including Teams and Outlook. It pops up while trying to sign into your Office account. If you face this error, here are the solutions you can use to fix it:
- Make sure the date and time settings are correct.
- Update your Office app.
- Recreate a new Outlook profile.
- Clear the cache of the problematic Office app.
1] Make sure the date and time settings are correct
As mentioned earlier wrong date and time trigger authentication errors, ensure that you have configured the correct date and time settings on your computer.
2] Update your Office app
If you are using outdated Office apps, you might experience such errors. Hence, update Office to its latest version to avoid login errors like this. Here’s how you can do that:
- First, open any Office app and go to the File menu.
- Now, click on the Account option.
- Next, tap on the Update Options > Update Now option and let Office download and install pending Office updates.
- Once the updates are installed, restart the problematic Office app and see if the error is gone.
Read: Fix Teams error CAA20003 or CAA2000C.
3] Recreate a new Outlook profile
If you are experiencing this error with Outlook, you can try creating a new Outlook profile and see if it helps. Here are the steps to do that:
First, open Run using Win+R and enter “control panel” to open the Control Panel.
Now, set the View by to Large icons and then click on the Mail (Microsoft Outlook) option.
After that, press the Show Profiles button and click on the Add button in the opened prompt.
Next, enter the name of your new Outlook profile and then set up your email account to finish creating a profile.
Once done, select the newly created profile under the Always use this profile option and press the OK button to save changes.
See: Fix Error Code 0xCAA70010 in Office 365.
4] Clear the cache of the problematic Office app
If you still are unable to log into your Office app, it could be a corrupted cache file causing the error. So, you can clear the cache of the Office app with which you are facing this error.
For example, if this error occurs on Outlook, follow the below steps to clear the cache:
- Firstly, open Run and enter “%localappdata%\Microsoft\Outlook” in its Open box.
- Next, open the RoamCache folder and select all the files present in it using Ctrl+A.
- Now, delete all the files by using the Delete button.
- Once done, restart the app and check if the error CAA20008 is fixed or not.
I hope you won’t face this error now.
How do I fix Microsoft Teams error code CAA20002?
To fix the error code CAA20002 on Microsoft Teams, disconnect and reconnect the account using the Settings app. If that doesn’t help, you can clear the Teams cache, try using the web version of Teams, or uninstall and reinstall the Teams app to fix the error.
What is error code CAA2000B in Excel?
The error code CAA2000B in Excel and other Office apps occurs when trying to log in to your account. It can occur for different reasons including incorrect date and time settings, broken cache files, and outdated Office software. If it is triggered in Outlook, it could be caused due to a damaged profile.
Now read: Teams Error caa20001, There’s a more permanent way to sign in.
