Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Update Error 0x80070002 on Windows 11
If you see error 0x80070002 when running Windows Update on Windows 11, it usually means Windows c...
How to Fix Git Unrelated Histories Error When Merging Branches
You try to merge two branches, and Git stops with: fatal: refusing to merge unrelated histo...
Cloudflare DNS Propagation Stuck: How to Fix
You updated a DNS record in Cloudflare hours or even days ago, but the change still isn't sho...
How to Recover Stashed Changes in Git Detached HEAD
If you've stashed changes while in a detached HEAD state in Git, you might worry they're ...
Fix Git SSL Certificate Verify Failed: Unable to Get Local Issuer
When you see fatal: unable to access '...': SSL certificate problem: unable to get ...
Issue queue
SitemapDocker Volume Permission Denied: Quick Fixes
How to Fix Node.js and npm Version Mismatch
Stop Automatic Repair Loop Caused by Explorer Crashes
Fix Windows Update Error 0x80070002 with System File Checker
How to Fix 'index.lock file exists' in Git Rebase
Fix Windows Explorer Restarting from Corrupted System Files
Windows 10: Python Command Not Found – Add to PATH
Git Detached HEAD: How to Safely Use Reset --hard
Chrome Sync Broken by Proxy? Here's the Fix
Git index.lock File Exists Even After Deleting: Fixes
Git Detached HEAD IntelliJ Troubleshooting
Fix PowerShell Execution Policy Restricted in VS Code
How to Fix Node.js and npm Version Mismatch
Stop Automatic Repair Loop Caused by Explorer Crashes
Fix Windows Update Error 0x80070002 with System File Checker
How to Fix 'index.lock file exists' in Git Rebase
Fix Windows Explorer Restarting from Corrupted System Files
Windows 10: Python Command Not Found – Add to PATH
Git Detached HEAD: How to Safely Use Reset --hard
Chrome Sync Broken by Proxy? Here's the Fix
Git index.lock File Exists Even After Deleting: Fixes
Git Detached HEAD IntelliJ Troubleshooting
Fix PowerShell Execution Policy Restricted in VS Code