Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix VSCode IntelliSense Not Working for PowerShell
If you're editing PowerShell scripts in VS Code and IntelliSense stops showing suggestions (n...
Fix Windows 11 WiFi Connected but No Internet After Sleep
You wake your Windows 11 PC from sleep, the WiFi icon shows connected, but you can't load any...
Fix git index.lock File Exists Error on Windows
If you see fatal: Unable to create 'index.lock': File exists. when running G...
Fix Windows 11 WiFi No Internet Due to Antivirus Blocking
If your Windows 11 PC shows full WiFi bars but no internet access, your antivirus might be blocki...
Cloudflare DNS Not Propagating After SSL Certificate Change
You changed an SSL certificate in Cloudflare, but DNS changes aren't showing up. This is a co...
Issue queue
SitemapNginx Upstream Connection Refused on Port 443 Fix
Python Requests UnicodeDecodeError Troubleshooting Guide
How to Get Edge Sync Working Across Devices
Fix Grayed Out Windows Defender Real-Time Protection in Windows 10
Setting Timeout in Python Requests: A Practical Guide
How to Fix Cloudflare 522 Errors: Connection Timeout Guide
Fix Python Permission Denied When Installing Package in Virtual Environment
Troubleshoot Docker Compose Missing Environment Variables
How to Resolve Git SSL Certificate Error: Unable to Get Local Issuer
Fix Docker Permission Denied Errors on Ubuntu
How to Resolve Certificate Authority Invalid in Chrome
Resolving Conflicting Package Versions in Multiple Requirements Files
Python Requests UnicodeDecodeError Troubleshooting Guide
How to Get Edge Sync Working Across Devices
Fix Grayed Out Windows Defender Real-Time Protection in Windows 10
Setting Timeout in Python Requests: A Practical Guide
How to Fix Cloudflare 522 Errors: Connection Timeout Guide
Fix Python Permission Denied When Installing Package in Virtual Environment
Troubleshoot Docker Compose Missing Environment Variables
How to Resolve Git SSL Certificate Error: Unable to Get Local Issuer
Fix Docker Permission Denied Errors on Ubuntu
How to Resolve Certificate Authority Invalid in Chrome
Resolving Conflicting Package Versions in Multiple Requirements Files