Fix Nginx Upstream Connection Refused Error
When Nginx returns upstream connection refused in your error logs, it means Nginx tr...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFixing Cloudflare 522 Error: CDN Configuration Steps
If you see a 522 Connection Timed Out error from Cloudflare, it means your CDN (...
How to Stop Windows Explorer from Triggering Automatic Repair
If Windows Explorer keeps restarting and eventually triggers Automatic Repair, you're likely ...
Windows Security App Won't Open in Safe Mode: Fixes
If you’re in Safe Mode and the Windows Security app refuses to open—showing a blank window, crash...
Fix VSCode Source Control Not Detecting Changes
You're working in Visual Studio Code, you edit a file, but the Source Control view shows no c...
Fix Nginx 502 Bad Gateway with Docker Multiple Containers
If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...
Issue queue
SitemapWindows 11 BSOD After Update: Bootable USB Repair Guide
Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix
How to Fix npm install Permission Denied with nvm
Resolve Chrome Status Access Violation Error Guide
ERR_CERT_AUTHORITY_INVALID Localhost Fix
Switching from Cloudflare Origin Certificate to Let's Encrypt
Windows 11 Wi-Fi No Internet? Try Disabling IPv6
Cloudflare Wildcard Subdomain CNAME Setup Guide
How to Merge Two Git Repositories with Unrelated Histories
How to Resolve Node Sass Build Failures
Fix 'Permission Denied' in VS Code Terminal
How to Fix 'python' Not Recognized After Reinstalling Python
Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix
How to Fix npm install Permission Denied with nvm
Resolve Chrome Status Access Violation Error Guide
ERR_CERT_AUTHORITY_INVALID Localhost Fix
Switching from Cloudflare Origin Certificate to Let's Encrypt
Windows 11 Wi-Fi No Internet? Try Disabling IPv6
Cloudflare Wildcard Subdomain CNAME Setup Guide
How to Merge Two Git Repositories with Unrelated Histories
How to Resolve Node Sass Build Failures
Fix 'Permission Denied' in VS Code Terminal
How to Fix 'python' Not Recognized After Reinstalling Python