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Fix Nginx Upstream Connection Refused in Proxy Pass - How to Solve DNS Probe Finished NXDOMAIN from Antivirus-Stop Windows 11 Blue Screen After Update with Compatibility Mode

2026-07-28 13:45:54
Fix Nginx Upstream Connection Refused in Proxy Pass - How to Solve DNS Probe Finished NXDOMAIN from Antivirus-Stop Windows 11 Blue Screen After Update with Compatibility Mode

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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