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Fix 502 Bad Gateway When Windows Search Not Working - PostgreSQL Connection Issues: Refused and Denied-Reduce Windows Defender CPU Usage on Windows 11

Updated 2026-06-18 02:43:42developer-tools
Fix 502 Bad Gateway When Windows Search Not Working - PostgreSQL Connection Issues: Refused and Denied-Reduce Windows Defender CPU Usage on Windows 11
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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