Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWhy Cloudflare DNS Changes Aren't Propagating
You updated a DNS record in Cloudflare but the change isn't showing up. Visitors still see th...
Fix Windows Explorer Restarting After Login
If Windows Explorer keeps restarting after you log in, you’ll see the desktop flash, icons disapp...
Fix VS Code Terminal Not Opening PowerShell
If you click the terminal panel in VS Code and nothing happens, or it opens a blank shell instead...
Taskbar Icons Disappeared After Explorer Crash: How to Restore Them
If your taskbar icons vanished after an Explorer crash, you're not alone. This is a common is...
How to Fix Chrome ERR_CONNECTION_RESET with DNS Flush
If Chrome shows ERR_CONNECTION_RESET, the connection was interrupted. This often...
Issue queue
SitemapHow to Enable Breakpoints in VS Code
Python Virtual Environment Not Activating on Mac: Fixes
Docker Login Access Denied: Common Fixes
VS Code SSH Terminal Not Opening: Troubleshooting
VS Code Remote Terminal Not Loading on SSH
Node.js Garbage Collection Tuning to Avoid Heap Out of Memory
Git Merge Conflict: How to Keep Both Versions of a File
Resolving Permission Denied for Cloudflare Origin Cert
Fix npm EACCES Permission Errors: Step-by-Step
How to Turn Windows Defender Real-Time Protection Back On
How to Fix Windows Update Service Not Running Due to Malwarebytes
Git Clone Timed Out and Permission Denied: How to Fix
Python Virtual Environment Not Activating on Mac: Fixes
Docker Login Access Denied: Common Fixes
VS Code SSH Terminal Not Opening: Troubleshooting
VS Code Remote Terminal Not Loading on SSH
Node.js Garbage Collection Tuning to Avoid Heap Out of Memory
Git Merge Conflict: How to Keep Both Versions of a File
Resolving Permission Denied for Cloudflare Origin Cert
Fix npm EACCES Permission Errors: Step-by-Step
How to Turn Windows Defender Real-Time Protection Back On
How to Fix Windows Update Service Not Running Due to Malwarebytes
Git Clone Timed Out and Permission Denied: How to Fix