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 notesPython Requests Timeout Not Working: Fixes & Checks
You set a timeout in requests.get(url, timeout=5), but the request hangs for minutes...
VSCode Debugger Breakpoints Not Hit After Update: Fixes
After a recent VSCode update, you might find that breakpoints are set but never hit. The debugger...
Fix VSCode Save File Permission Denied Error
You try to save a file in Visual Studio Code and see 'Permission denied'. The file might ...
Bluetooth Hardware Not Found on Windows 11: Fixes
You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...
Fix Git Clone Timeout in VS Code: Practical Steps
You're trying to clone a repository in VS Code, but the operation times out. This often happe...
Issue queue
SitemapWindows Update Service Permission Denied Fix
How to Solve NET::ERR_CERT_AUTHORITY_INVALID in Chrome at Work
How to Fix Chrome Black Screen from Hardware Acceleration
Turn On Defender Real-Time Protection Using PowerShell
Fix Git SSL Certificate Verify Failed: Unable to Get Local Issuer
How to Fix Venv Activation Problems
How to Resolve Remote Desktop Connection Failed Permission Denied
Cloudflare 522 Error: A Practical Troubleshooting Guide
Docker Compose Port Already Allocated: How to Fix
Missing Taskbar Icons in Windows 11? Try These Fixes
How to Fix Windows Update Error 0x800f081f
PyCharm Virtual Environment Not Activating? Try These Fixes
How to Solve NET::ERR_CERT_AUTHORITY_INVALID in Chrome at Work
How to Fix Chrome Black Screen from Hardware Acceleration
Turn On Defender Real-Time Protection Using PowerShell
Fix Git SSL Certificate Verify Failed: Unable to Get Local Issuer
How to Fix Venv Activation Problems
How to Resolve Remote Desktop Connection Failed Permission Denied
Cloudflare 522 Error: A Practical Troubleshooting Guide
Docker Compose Port Already Allocated: How to Fix
Missing Taskbar Icons in Windows 11? Try These Fixes
How to Fix Windows Update Error 0x800f081f
PyCharm Virtual Environment Not Activating? Try These Fixes