Nginx Upstream Connection Refused: Diagnosis and Fixes
When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Set Python Path in Windows 10
If you've installed Python on Windows 10 but get 'python' is not recognized
Fix VSCode IntelliSense Not Working for Rust
You open a Rust project in VSCode, start typing, and get no completions, hover info, or error hig...
Fix pnpm ERR_PNPM_OUTDATED_LOCKFILE Lockfile Error
When running pnpm install or pnpm update, you may see:
ER...Setup Cloudflare Origin Certificate for Nginx
If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...
Python venv Not Working on Windows 10: Common Fixes
If you're trying to create or activate a Python virtual environment on Windows 10 and it'...
Issue queue
SitemapFix Docker Engine Not Starting After Update
Fix Cloudflare www DNS Not Updating
Fix 'pip install externally managed environment' Error
How to Resolve Windows 11 Installation Assistant 99% Stall
How to Resolve Git Auth Failed in VS Code with Token
How to Remove the Externally Managed Environment Flag in pip
How to Fix Nginx Redirect Loop from HTTP to HTTPS
Resolving Git Clone Timeout on Unstable Networks
Git SSL Certificate Problem: Fix 'Unable to Get Local Issuer Certificate'
Cloudflare DNS Propagation Stuck: How to Fix
Git Merge Conflict Rebase Stuck: Fix Unresolved Paths
Nginx HTTP to HTTPS Redirect Loop Fix
Fix Cloudflare www DNS Not Updating
Fix 'pip install externally managed environment' Error
How to Resolve Windows 11 Installation Assistant 99% Stall
How to Resolve Git Auth Failed in VS Code with Token
How to Remove the Externally Managed Environment Flag in pip
How to Fix Nginx Redirect Loop from HTTP to HTTPS
Resolving Git Clone Timeout on Unstable Networks
Git SSL Certificate Problem: Fix 'Unable to Get Local Issuer Certificate'
Cloudflare DNS Propagation Stuck: How to Fix
Git Merge Conflict Rebase Stuck: Fix Unresolved Paths
Nginx HTTP to HTTPS Redirect Loop Fix