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Fix Windows Defender Firewall Blocking Internet Connection - Fix Nginx 502 Bad Gateway Behind Cloudflare-How to Unlock a File Held by Command Prompt

2026-06-13 19:14:31browser-issues
Fix Windows Defender Firewall Blocking Internet Connection - Fix Nginx 502 Bad Gateway Behind Cloudflare-How to Unlock a File Held by Command Prompt

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.