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How to Fix pgAdmin Server Connection Refused - Troubleshoot OneDrive Error 0x8004de40 on Windows-Mac Defender Installation: Step-by-Step Checklist

Updated 2026-06-14 18:43:59developer-tools
How to Fix pgAdmin Server Connection Refused - Troubleshoot OneDrive Error 0x8004de40 on Windows-Mac Defender Installation: Step-by-Step Checklist
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.