Fix PostgreSQL Connection Refused on Port 5432
When you see psql: error: connection to server at ... failed: Connection refused on ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search 404 Error by Rebuilding the Index
When Windows Search throws a "404 error" or returns no results, the search index is often corrupt...
Microsoft Store SSL Certificate Error: Troubleshooting Checklist
You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...
Fix Microsoft Store Error 0x80072efd: Connection Refused
When you open Microsoft Store and see error 0x80072efd with the message "Connection refused," it ...
Fix Windows Defender Rate Limit Error Not Working
If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...
Fix OneDrive Sync Token Expired on Mac
If you see a 'sync token expired' error in OneDrive for Mac, it usually means the authentication ...
Topic paths
Quick titles
Remote Desktop DNS Lookup Failed – Troubleshooting GuideHow to Resolve Teams Service Error on MacRemote Desktop Service Not Available: Troubleshooting GuideWindows 10/11 Activation Connection Refused FixFix OneDrive Permission Denied Sync ErrorsResolve Outlook Version Mismatch on Exchange 2019Chrome Sync Not Working on Ubuntu: Diagnostic GuidePowerShell Reset Settings Fails? Try These Fixes