Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix DNS Probe Finished NXDOMAIN in Edge Browser
When Microsoft Edge shows "DNS_PROBE_FINISHED_NXDOMAIN", it means the browser cannot reso...
Fix VS Code Terminal Not Opening on Windows 10
When you press Ctrl+` or click the Terminal panel in VS Code and nothing happens, it's usuall...
Fix Chrome Crash on Startup Due to Corrupt User Profile
If Chrome crashes immediately when you open it, or shows a warning that your profile may be corru...
How to Fix Git index.lock File Exists Error on Mac
If you're working with Git on a Mac and see the error fatal: Unable to create '/pat...
Bluetooth Troubleshooting Checklist for Windows 11
Bluetooth on Windows 11 can be unreliable. If your device won't pair, keeps dropping, or does...
Issue queue
SitemapFix Chrome Access Violation Error on Mac
VS Code Debugger Not Hitting Breakpoints in Node.js: Fixes
Fix Bluetooth Permission Denied Error on Windows 11
How to Fix Git Refusing to Merge Unrelated Histories
Git Binary Merge Conflict: Practical Solutions
How to Create a New Branch from a Detached HEAD in Git
Understanding and Resolving Git Detached HEAD
Volume Mount Causing Docker Container to Exit – Solutions
Chrome Android Certificate Authority Invalid Error Fix
Resolve Python Dependency Issues
Troubleshooting Git Clone Connection Timeout
Git Merge Unrelated Histories – Causes and Solutions
VS Code Debugger Not Hitting Breakpoints in Node.js: Fixes
Fix Bluetooth Permission Denied Error on Windows 11
How to Fix Git Refusing to Merge Unrelated Histories
Git Binary Merge Conflict: Practical Solutions
How to Create a New Branch from a Detached HEAD in Git
Understanding and Resolving Git Detached HEAD
Volume Mount Causing Docker Container to Exit – Solutions
Chrome Android Certificate Authority Invalid Error Fix
Resolve Python Dependency Issues
Troubleshooting Git Clone Connection Timeout
Git Merge Unrelated Histories – Causes and Solutions