How to Fix Nginx Upstream Connection Refused on Port 80
When nginx logs show "upstream connection refused" while connecting to port 80, it means ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome Status Access Violation in Safe Mode
If you see a 'status access violation' error in Chrome while in safe mode, it usually poi...
Fix npm run build failing due to ESLint errors
You run npm run build and it fails with a wall of ESLint errors. This is common when...
How to Fix Chrome Startup Crash by Disabling Extensions
If Chrome crashes as soon as you open it, a misbehaving extension is often the culprit. Extension...
Chrome Sync Not Working on Work Network: Fixes to Try
If Chrome sync stops working when you're connected to your work network, the problem is often...
Fix 'pip externally managed environment' Error in Python 3.12
If you're using Python 3.12 on a modern Linux distribution (like Fedora 38+, Ubuntu 23.04+, o...
Issue queue
SitemapHow to Fix Git Authentication Failed in VSCode with SSH
How to Resolve Git Auth Failed in VS Code with Token
Fix 'Permission Denied' in VS Code When File Isn't Read-Only
Troubleshooting DNS_PROBE_FINISHED_NXDOMAIN Error on WiFi
Fix Git 'refusing to merge unrelated histories' Error
Fixing Python UnicodeDecodeError When Reading CSV Files
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Git Stash Fails: index.lock Exists – Fix
Nginx HTTP to HTTPS Redirect Loop Fix
Python Virtual Environment Activation Issues on Ubuntu
Fix Windows Security App Not Starting on Windows 11
VS Code Git Lock File Error Fix
How to Resolve Git Auth Failed in VS Code with Token
Fix 'Permission Denied' in VS Code When File Isn't Read-Only
Troubleshooting DNS_PROBE_FINISHED_NXDOMAIN Error on WiFi
Fix Git 'refusing to merge unrelated histories' Error
Fixing Python UnicodeDecodeError When Reading CSV Files
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Git Stash Fails: index.lock Exists – Fix
Nginx HTTP to HTTPS Redirect Loop Fix
Python Virtual Environment Activation Issues on Ubuntu
Fix Windows Security App Not Starting on Windows 11
VS Code Git Lock File Error Fix