Fix Windows Security Settings Not Loading or Resetting - Resolve Microsoft Teams 504 Error Code-WireGuard NAT Issues: Handshake Not Completing

Updated 2026-06-14 17:00:03backup-recovery
Fix Windows Security Settings Not Loading or Resetting - Resolve Microsoft Teams 504 Error Code-WireGuard NAT Issues: Handshake Not Completing
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.