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Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Windows Security App Not Responding? Try These Fixes-VS Code PowerShell Script Execution Policy Fix

Updated 2026-07-28 07:53:44windows-fixes

Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Windows Security App Not Responding? Try These Fixes-VS Code PowerShell Script Execution Policy Fix

Likely symptom

Likely cause

Safe rollback

Verification route

Repeat the original action, not only a simplified test case.
Restart the app or reload the service after configuration changes.