Fix Nginx 502 Bad Gateway: Upstream Connection Refused
If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Python Dependency Conflicts After an Update
You updated your Python environment or a package, and now your script throws import errors or ver...
Fix Cloudflare 522 Error with Nginx Configuration
You're seeing a Cloudflare 522 error: connection timed out between Cloudflare and your origin...
Cloudflare DNS Setup Propagation Not Completing: Fixes
You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...
How to Rebuild Taskbar Icon Cache in Windows 10
If your Windows 10 taskbar icons appear blank, wrong, or missing, the icon cache may be corrupted...
Fix Git Lock File Not Deleted After Crash
If Git reports a lock file error after a crash, it usually means a previous Git operation was int...
Issue queue
SitemapHow to Manually Download and Install Windows Update 0x80070002
How to Restore Missing Taskbar Icons Windows 10
Troubleshoot Chrome Extensions Not Saving Config
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Permanently Allow Unrelated Histories in Git Merge
Fix 'fatal: refusing to merge unrelated histories' in Git
VS Code IntelliSense Not Working in Workspace: Fixes
How to Stop a Blue Screen Loop After Windows 11 Update
Resolving pip's Externally Managed Environment Error on Linux
Cloudflare Origin SSL Checklist
Fix Docker Compose Container That Exits Right Away
Windows 11 WiFi No Internet – Proxy Fix
How to Restore Missing Taskbar Icons Windows 10
Troubleshoot Chrome Extensions Not Saving Config
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Permanently Allow Unrelated Histories in Git Merge
Fix 'fatal: refusing to merge unrelated histories' in Git
VS Code IntelliSense Not Working in Workspace: Fixes
How to Stop a Blue Screen Loop After Windows 11 Update
Resolving pip's Externally Managed Environment Error on Linux
Cloudflare Origin SSL Checklist
Fix Docker Compose Container That Exits Right Away
Windows 11 WiFi No Internet – Proxy Fix