How to Fix Error 0x80073712 by Repairing System Files - Troubleshoot WireGuard Handshake Failure-Fixing Windows Security 502 Bad Gateway: Configuration Steps

Updated 2026-06-13 13:32:42cloud-software
How to Fix Error 0x80073712 by Repairing System Files - Troubleshoot WireGuard Handshake Failure-Fixing Windows Security 502 Bad Gateway: Configuration Steps
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.