Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesDNS Probe Finished NXDOMAIN: Internet Connection but No Browsing Fix
You see the error 'DNS probe finished NXDOMAIN' on Chrome or other browsers, yet your int...
Chrome Memory Saver Mode Not Working: Quick Fixes
If Chrome's Memory Saver mode isn't activating or saving memory as expected, you're n...
VSCode Debugger Breakpoints Not Hit After Update: Fixes
After a recent VSCode update, you might find that breakpoints are set but never hit. The debugger...
DNS Probe Finished NXDOMAIN: Meaning and Fixes
You're trying to visit a website but Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". This...
Fix Windows Security App Blocked by Antivirus
You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...
Issue queue
SitemapFix Windows 11 Wi-Fi No Internet with IPv6 Off
VS Code Debugger Won't Stop at Breakpoints on Windows
Windows Security App Won't Open in Safe Mode: Fixes
Chrome Black Screen on External Monitor Fix
Fix Chrome Hardware Acceleration Black Screen on External Monitor
Resolve Docker Compose Port Conflict on Windows
How to Fix Pip Externally Managed Environment Error
Resolve npm EACCES Errors When Using nvm
Fix 'externally-managed-environment' pip Error in Python 3.11
Fix ERR_NAME_NOT_RESOLVED DNS Configuration Error
How to Use Git LFS with GitHub: Setup and Troubleshooting
Handling Binary File Conflicts in Git Merge
VS Code Debugger Won't Stop at Breakpoints on Windows
Windows Security App Won't Open in Safe Mode: Fixes
Chrome Black Screen on External Monitor Fix
Fix Chrome Hardware Acceleration Black Screen on External Monitor
Resolve Docker Compose Port Conflict on Windows
How to Fix Pip Externally Managed Environment Error
Resolve npm EACCES Errors When Using nvm
Fix 'externally-managed-environment' pip Error in Python 3.11
Fix ERR_NAME_NOT_RESOLVED DNS Configuration Error
How to Use Git LFS with GitHub: Setup and Troubleshooting
Handling Binary File Conflicts in Git Merge