WireGuard Handshake Not Completing: Firewall Fixes - Windows Defender Threat History Timeout Fix-Fix Windows Defender Error 0x8007042c: Network & Setup Checks

Updated 2026-06-13 12:36:24
WireGuard Handshake Not Completing: Firewall Fixes - Windows Defender Threat History Timeout Fix-Fix Windows Defender Error 0x8007042c: Network & Setup Checks
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.