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Fix Windows Security Connection Refused Certificate Error - Windows Update Auth Error After Password Change-Resolve 502 Bad Gateway in Windows Terminal – Firewall Fixes

2026-06-13 18:13:42
Fix Windows Security Connection Refused Certificate Error - Windows Update Auth Error After Password Change-Resolve 502 Bad Gateway in Windows Terminal – Firewall Fixes

Result check

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