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 notesHow to Fix Cloudflare 522 Error When Website Won't Load
Cloudflare 522 error means your origin server is not responding within the allowed time. This usu...
How to Fix VS Code Terminal Not Opening
If you click the terminal panel in VS Code and nothing appears, or it opens but stays blank, the ...
How to Fix Firefox Secure Connection Failed Error Code
You're browsing and suddenly Firefox shows a full-page error: Secure Connection Faile...
How to Fix Edge Sync Stuck on Preparing Sync
You open Microsoft Edge, click your profile, and see 'Preparing sync' — but it never fini...
How to Fix Cloudflare Origin Certificate Invalid Error
If you see a Cloudflare origin certificate invalid error, your browser or server is rejecting the...
Issue queue
SitemapWindows Explorer Keeps Crashing: Quick Fixes
Fix PR_CONNECT_RESET_ERROR in Firefox by Clearing Cache
Python Command Missing in Command Prompt Anaconda Works
How to Fix Git Clone Timeout Due to Firewall
Troubleshoot ERR_CONNECTION_RESET Chrome Error
Git Detached HEAD: How to Undo and Recover
How to Fix Windows Cannot Access Shared Folder in Windows 10
Chrome Task Manager: Find and Kill Memory Hogs
Chrome Extensions Missing or Broken? Here's Help
Fix VSCode Source Control Not Detecting Changes
Windows Update 0x800f081f: Causes and Fixes
Windows 11 Bluetooth Not Turning On: Fix Guide
Fix PR_CONNECT_RESET_ERROR in Firefox by Clearing Cache
Python Command Missing in Command Prompt Anaconda Works
How to Fix Git Clone Timeout Due to Firewall
Troubleshoot ERR_CONNECTION_RESET Chrome Error
Git Detached HEAD: How to Undo and Recover
How to Fix Windows Cannot Access Shared Folder in Windows 10
Chrome Task Manager: Find and Kill Memory Hogs
Chrome Extensions Missing or Broken? Here's Help
Fix VSCode Source Control Not Detecting Changes
Windows Update 0x800f081f: Causes and Fixes
Windows 11 Bluetooth Not Turning On: Fix Guide