Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix npm install Permission Denied in Home Directory

If you see EACCES: permission denied or similar errors when running npm instal...

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...

Fix Windows Security App Not Starting on Windows 11
You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

Fix Git Clone Connection Timed Out Due to Firewall
You run git clone and after a long pause see connection timed out. This...

Cloudflare Wildcard Subdomain CNAME Setup Guide
If you need to route all subdomains (e.g., *.example.com) to the same target, a wildcard CNAME re...


    Issue queue
Sitemap
pip Externally Managed Environment Fix Guide
Fix Windows Update Error 0x80070005: Permissions & More
Resolving pnpm Lockfile Merge Conflicts
Fix Docker No Space Left on Device on Ubuntu
Windows Update Service Disabled Troubleshooting
Resolving Git's Unrelated Histories Error
Windows Security Repair Guide
Fix VS Code Git Authentication Failure with No Prompt
Edge Sync Not Working on Windows 11: Fixes
Windows Security App Not Opening on Windows 10: Fixes That Work
How to Fix Chrome Extensions Not Loading Properly
Chrome Extensions Not Loading in Incognito: How to Fix
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities