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 Defender Network Connection Issues
If Windows Defender shows "can't connect to the network" or similar errors, it usually means the ...
How to Fix Postman Self-Signed Certificate Error
When using Postman to test APIs that use self-signed certificates, you may encounter an error lik...
Fix Microsoft Teams Port Already Allocated with Netsh
When Microsoft Teams fails to start or connect, you may see errors about a port already being all...
Fixing Microsoft Teams Camera Error 0x1f
When you try to start a video call in Microsoft Teams and see error code 0x1f, the camera either ...
Fix OneDrive Sync Connection Refused on Windows 11
If you see "connection refused" when OneDrive tries to sync on Windows 11, the app can't reach Mi...
Topic paths
Quick titles
Fix Microsoft Store Invalid Configuration with wsresetHow to Fix Windows Update Permission Denied ErrorHow to Resolve Microsoft Teams Connection Timeout ErrorsHow to fix npm not found without sudoHow to Stop Windows Defender Slowing BootFix PowerShell Script Not Showing OutputHow to Enter BitLocker Key When Safe Mode FailsTroubleshooting Chrome Download Error 0x80070002