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Teams stops working when joining from Edge or Internet Explorer

  • Applies to: Microsoft Teams

Symptoms

When trying to join Microsoft Teams using Edge or Internet Explorer, Teams will loop, stop working, or fail to sign in.

Cause

Your organization utilizes Trusted Sites in Internet Explorer. The Teams web-based application will not correctly sign in if Teams are not allowed as a trusted site.

Resolution

Make the following changes to IE or Edge settings from the Control Panel, either with Administrator rights or a Group Policy Object:

  1. Under Internet Options > Privacy > Advanced, accept First-Party and Third-Party cookies, and check the box for Always allow session cookies.
  2. Select Internet Options > Security > Trusted Sites > Sites, and add the following URLs:
    • https://login.microsoftonline.com
    • https://*.teams.microsoft.com

Note

Always validate and allow all trusted URLs for Teams and the requirements from the following document: Microsoft 365 URLs and IP address ranges.

More information

Still need help? Go to Microsoft Community.