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Home / browser-issues / Fix pgAdmin 'Unable to Connect to Server' on Port 5432 - Troubleshooting Windows Security Authentication Error 0x80070035-Troubleshoot Windows Security App Hanging on Startup

Fix pgAdmin 'Unable to Connect to Server' on Port 5432 - Troubleshooting Windows Security Authentication Error 0x80070035-Troubleshoot Windows Security App Hanging on Startup

Updated 2026-06-13 15:13:44browser-issues
Fix pgAdmin 'Unable to Connect to Server' on Port 5432 - Troubleshooting Windows Security Authentication Error 0x80070035-Troubleshoot Windows Security App Hanging on Startup
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.