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How to Fix Chrome ERR_TUNNEL_CONNECTION_FAILED - How to Resolve Microsoft Store Error 0x80070424-Clear DNS Cache to Fix Windows Terminal 504 Timeout

2026-06-13 18:27:22browser-issues
How to Fix Chrome ERR_TUNNEL_CONNECTION_FAILED - How to Resolve Microsoft Store Error 0x80070424-Clear DNS Cache to Fix Windows Terminal 504 Timeout

Final checklist

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