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How to Fix Microsoft Teams Connection Refused Error - Troubleshoot Windows Security Launch Failure-How to Enable Teams to Launch on Startup

Updated 2026-06-14 16:20:56office-tools
How to Fix Microsoft Teams Connection Refused Error - Troubleshoot Windows Security Launch Failure-How to Enable Teams to Launch on Startup
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.

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