How to Fix Cloudflare 521 Error During Setup
If you see a 521 error after setting up Cloudflare, it means your origin server refused the conne...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Firefox Secure Connection Failed Not Loading
If Firefox shows a “Secure Connection Failed” error and won’t let you load a site, it usually mea...
How to Reset Windows Defender Real-Time Protection
Windows Defender real-time protection can sometimes get stuck, fail to turn on, or stop respondin...
Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Fixing Unresolved Paths After Git Merge Conflict Rebase
When you run git rebase and hit a merge conflict, Git pauses the rebase and asks you...
Fix VSCode IntelliSense Not Working for PowerShell
If you're editing PowerShell scripts in VS Code and IntelliSense stops showing suggestions (n...
Issue queue
SitemapResolve 'Access Denied' Error for Mapped Drives in Windows 10
Windows Update 0x800f081f Troubleshooting Guide
Git SSL Certificate Problem: Quick Fixes for GitHub
VS Code Source Control Ignores Subfolder Changes
Fix 'python' Command Not Found in Windows PowerShell
Fix Windows Update Error 0x80070002 Using DISM
How to Get Python venv Working in VS Code Terminal
Pip Externally Managed Environment: What to Do
Check DNS Propagation Status in Cloudflare
Troubleshooting pnpm Stuck on Resolving Dependencies
Cloudflare SSL Full Strict Troubleshooting Steps
Fix Windows 11 Bluetooth Problems: Step-by-Step Guide
Windows Update 0x800f081f Troubleshooting Guide
Git SSL Certificate Problem: Quick Fixes for GitHub
VS Code Source Control Ignores Subfolder Changes
Fix 'python' Command Not Found in Windows PowerShell
Fix Windows Update Error 0x80070002 Using DISM
How to Get Python venv Working in VS Code Terminal
Pip Externally Managed Environment: What to Do
Check DNS Propagation Status in Cloudflare
Troubleshooting pnpm Stuck on Resolving Dependencies
Cloudflare SSL Full Strict Troubleshooting Steps
Fix Windows 11 Bluetooth Problems: Step-by-Step Guide