Fix Nginx Upstream Connection Refused Error
When Nginx returns upstream connection refused in your error logs, it means Nginx tr...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesRecover Lost Commits After Git Detached HEAD
You've made commits while in a detached HEAD state, and now you can't see them on any bra...
Fix Windows 11 WiFi No Internet Due to Proxy Settings
If your Windows 11 laptop shows full WiFi bars but browsers say “No internet,” a common culprit i...
Fix Windows Security App Blocked by Antivirus
You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...
Fixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...
Fix Windows Search Indexing Not Working for Outlook
If you open Outlook and search for an old email, contact, or appointment and nothing appears, or ...
Issue queue
SitemapHow to Fix pip install Permission Denied on Linux
Fix Chrome Black Screen Flickering from Hardware Acceleration
VS Code Git Not Detecting Changes in Workspace: Fixes
Fix Grayed Out Chrome Extensions on Mac
Antivirus Causing ERR_NAME_NOT_RESOLVED – Solutions
Resolving Node Version Engine Errors in Your Project
Troubleshooting VS Code Git Authentication Problems
VS Code Breakpoint Condition Not Hitting? Here's How to Fix
Fix Chrome Sync Not Working After Google Password Update
How to Run npm install Without sudo Permission Denied
Understanding Cloudflare DNS Propagation Times
Chrome Freezes at Launch on Mac – Troubleshooting Guide
Fix Chrome Black Screen Flickering from Hardware Acceleration
VS Code Git Not Detecting Changes in Workspace: Fixes
Fix Grayed Out Chrome Extensions on Mac
Antivirus Causing ERR_NAME_NOT_RESOLVED – Solutions
Resolving Node Version Engine Errors in Your Project
Troubleshooting VS Code Git Authentication Problems
VS Code Breakpoint Condition Not Hitting? Here's How to Fix
Fix Chrome Sync Not Working After Google Password Update
How to Run npm install Without sudo Permission Denied
Understanding Cloudflare DNS Propagation Times
Chrome Freezes at Launch on Mac – Troubleshooting Guide