Fix Windows Defender Port Already Allocated Error - Fix Microsoft Teams Internet Connectivity Check Not Working-Teams High CPU – How to Lower It

Updated 2026-06-18 18:25:08security-tools
Fix Windows Defender Port Already Allocated Error - Fix Microsoft Teams Internet Connectivity Check Not Working-Teams High CPU – How to Lower It
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.