Fix Windows Security Token Expired Due to Group Policy - Microsoft Teams Connection Refused: Troubleshooting Checklist-Task Scheduler 0x80070057 After Settings Reset

Updated 2026-06-19 05:25:41windows-fixes
Fix Windows Security Token Expired Due to Group Policy - Microsoft Teams Connection Refused: Troubleshooting Checklist-Task Scheduler 0x80070057 After Settings Reset
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.