Fix Windows Security App Permission Issues
You open Windows Security and see a message like "This app has been blocked for your protecti...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Resolve Cloudflare Origin Certificate Chain Issues
When Cloudflare's edge cannot validate your origin server's certificate chain, visitors m...
Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Fix VS Code Git Authentication Failed Keychain Error
If you see "Git authentication failed" in VS Code on macOS, the problem is often the macO...
How to Resolve Cloudflare 522 Timeout Error
When you see a Cloudflare 522 timeout error, it means Cloudflare successfully connected to your o...
Docker Container Exits Immediately: Diagnosing Out of Memory
You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...
Issue queue
SitemapDocker Compose Environment Variable Override Not Working: Fixes & Checks
When to Use Secrets vs Environment Variables in Docker Compose
How to Fix node-sass Failed to Build on Mac
Nginx Upstream Connection Refused Fix
Fixing Nginx 502 Bad Gateway in Docker Networks
Troubleshoot Cloudflare Wildcard DNS Errors
Fix Windows 11 WiFi Connected but No Internet: IPv4 Settings
Troubleshooting Docker Volume Permission Denied Errors
How to Fix Windows 11 Update Stuck at 99%
Chrome Multi-Profile Sync Not Working: Fixes
Git SSL Certificate Problem: Quick Fixes for GitHub
How to Resolve Nginx Duplicate Listen Error
When to Use Secrets vs Environment Variables in Docker Compose
How to Fix node-sass Failed to Build on Mac
Nginx Upstream Connection Refused Fix
Fixing Nginx 502 Bad Gateway in Docker Networks
Troubleshoot Cloudflare Wildcard DNS Errors
Fix Windows 11 WiFi Connected but No Internet: IPv4 Settings
Troubleshooting Docker Volume Permission Denied Errors
How to Fix Windows 11 Update Stuck at 99%
Chrome Multi-Profile Sync Not Working: Fixes
Git SSL Certificate Problem: Quick Fixes for GitHub
How to Resolve Nginx Duplicate Listen Error