MS Teams keep coming up with Error code: CAA20002

Microsoft Teams has revolutionized how we communicate and collaborate in the digital age. Yet, encountering error codes like CAA20002 can disrupt this seamless experience. Understanding and rectifying these issues is crucial for maintaining productivity. This article delves into the causes of the MS Teams Error Code: CAA20002 and offers detailed solutions. Whether you’re a seasoned IT professional or a casual user, this guide will empower you to resolve this issue effectively.

MS Teams keep coming up with Error code: CAA20002

Understanding Error Code: CAA20002

Error Code: CAA20002 typically appears when there’s a problem with sign-in or authentication in Microsoft Teams. This can be due to various reasons such as network issues, outdated software, or incorrect sign-in details. Identifying the root cause is the first step in troubleshooting.

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Common Causes of Error CAA20002

  1. Network Connectivity Issues: A weak or unstable internet connection can prevent Teams from authenticating your login details.
  2. Outdated Teams Application: Using an older version of Teams can lead to compatibility and functionality issues.
  3. Incorrect Login Credentials: Entering wrong username or password can trigger this error.
  4. Account Permissions: Restricted permissions in your organization can also cause this error.

How to fix MS Teams keep coming up with Error code: CAA20002

Checking Network Connectivity

  1. Test Your Internet Connection: Ensure your device has a stable internet connection. Try accessing other websites or services to confirm.
  2. Reset Your Router: Sometimes, simply restarting your router can solve connectivity problems.
  3. Contact Your ISP: If the issue persists, it might be worthwhile to contact your Internet Service Provider.

Updating Microsoft Teams

  1. Open Teams: Go to the Microsoft Teams application on your device.
  2. Check for Updates: Navigate to your profile and select ‘Check for Updates’.
  3. Install Updates: If an update is available, install it and restart Teams.
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Verifying Login Credentials

  1. Re-enter Credentials: Double-check your username and password.
  2. Reset Password: If you suspect your password is incorrect, try resetting it.
  3. Contact IT Support: For corporate accounts, your IT department can assist with login issues.

Adjusting Account Permissions

  1. Check User Permissions: Ensure your account has the necessary permissions to access Teams.
  2. Consult with IT Department: In a corporate setting, the IT team can adjust your permissions.

Preventive Measures

To avoid future occurrences of this error, regularly update your Teams application and maintain a stable internet connection. Also, keep your login credentials secure and up-to-date.


Error Code: CAA20002 in MS Teams, though frustrating, is often easily fixable. By following the steps outlined above, you can quickly return to productive and efficient collaboration. Regular maintenance and updates of your Teams application can help prevent such issues. Remember, effective communication is key in the digital workspace, and overcoming these hurdles is part of the journey.