How to Fix 'Microsoft Teams Error caa70004'

The Microsoft Teams is Microsoft's business communication platform. The product is included in the Microsoft 365 suite of programs and offers a wide range of features including workplace chat, videoconferencing, file transfer and easy application integration. 

With the current state of the world and the advent of remote work, products such as Microsoft Teams saw a drastic increase in users. However, sometimes annoying errors can crop up and disrupt the otherwise smooth communication process. The 'Microsoft Teams Error caa70004' is one such example. 

The error usually signals that a network or cache problem has occurred and, as a result, users cannot log into Teams or join discussions. To resolve the issue, you may need to try several methods until you find the right one.

Clear Teams' Cache

  1. Log out of your Teams account and make sure that the application is not currently active in the background.
  2. Press the Windows key + R on your keyboard. This will open the Run dialog box.
  3. Inside it, type %App Data%\Microsoft\teams\cache and press Enter.
  4. Delete all files from the folder. 
  5. Launch Microsoft Teams again and check

Enable TLS

  1. Type Internet options in the search field on the taskbar. Open the top result.
  2. In the Internet Properties window, select the 'Advanced' tab.
  3. Under 'Settings,' scroll down until you have reached the 'Security' section.
  4. Check if both TLS1.1 and TLS 1.2 are enabled. If you have to, enable them by checking the corresponding boxes.
  5. Click 'OK' to save the changes.

Reset Internet Options

  1. Log out of your Teams account and shut down the application completely. 
  2. Type Internet options in the search field on the taskbar and open the top result.
  3. Go to the 'Advanced' tab in the Internet Properties window.
  4. Click on the 'Reset' button. 
  5. Afterward, click 'OK' to close the window and then try to launch Microsoft Teams once more.