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Fix Windows Update 504 Gateway Timeout Error - Fix Redis Connection Refused on Localhost Setup-Fix Windows Defender Update Error 0x80240022

2026-06-13 14:10:10office-tools
Fix Windows Update 504 Gateway Timeout Error - Fix Redis Connection Refused on Localhost Setup-Fix Windows Defender Update Error 0x80240022

Final checklist

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