Fixing NGINX Upstream Connection Refused SSL Errors
When NGINX logs upstream connection refused for an SSL backend, it usually means the...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows 11 Installation Assistant Stuck at 99% in Safe Mode
If you're running the Windows 11 Installation Assistant in Safe Mode and it gets stuck at 99%...
How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...
Cloudflare Origin Certificate Setup Checklist
You've set up Cloudflare but your origin server still shows SSL errors or mixed content warni...
Fix Python UnicodeDecodeError When Parsing JSON
You're parsing a JSON file in Python and hit UnicodeDecodeError: 'utf-8' codec ...
Cloudflare SSL Full vs Flexible: Troubleshooting Mixed Content & Errors
If your site shows broken padlocks, mixed content warnings, or SSL errors after changing Cloudfla...
Issue queue
SitemapDocker Container Exits Immediately with Volume Mount – Fixes
Cloudflare Wildcard Subdomain Cache Fixes
Fix Remote Desktop Not Working After Windows Update
How to Locate Docker Desktop Engine Logs
Fix Permission Denied on chmod in VS Code Terminal
Windows Shared Folder Not Accessible Troubleshooting
npm package.json Setup Guide
How to Fix Docker Build Context Canceled in VS Code
Python venv Won't Activate in VS Code Terminal
Troubleshooting Cloudflare Error 521 Post-Update
Troubleshooting node-gyp Rebuild for node-sass
Reinstall Docker Desktop Engine Without Losing Images
Cloudflare Wildcard Subdomain Cache Fixes
Fix Remote Desktop Not Working After Windows Update
How to Locate Docker Desktop Engine Logs
Fix Permission Denied on chmod in VS Code Terminal
Windows Shared Folder Not Accessible Troubleshooting
npm package.json Setup Guide
How to Fix Docker Build Context Canceled in VS Code
Python venv Won't Activate in VS Code Terminal
Troubleshooting Cloudflare Error 521 Post-Update
Troubleshooting node-gyp Rebuild for node-sass
Reinstall Docker Desktop Engine Without Losing Images