Fix Docker Nginx 502 Bad Gateway Upstream Error
When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWhy npm Says 'package.json Not Found' and How to Fix It
You run npm install or npm start and get npm ERR! package.json no...
Fix VSCode Source Control Not Detecting Changes
You're working in Visual Studio Code, you edit a file, but the Source Control view shows no c...
Fix Remote Desktop Connection Blocked by Firewall
When you try to connect to a remote PC using Remote Desktop (RDP) and get an error like “Remote D...
Fix Ethernet Connected but No Internet on Windows 11
You plug in an Ethernet cable, Windows 11 shows you're connected, but websites won't load...
Fix VSCode Git Authentication Failure with Bitbucket
You're working in Visual Studio Code, you try to push or pull from a Bitbucket repository, an...
Issue queue
SitemapPreserve Docker Images During Engine Reinstall
Docker Build Context Canceled: Fix .dockerignore Mistakes
Windows Security App Not Opening on Windows 10: Fixes That Work
Docker Compose Ports Not Working: Common Fixes
Fix Network Discovery Not Working for Shared Folders
How to Open Windows Security as Administrator
Cloudflare 522 Error: How to Fix CDN Connection Timeout
How to Fix Bluetooth Not Working in Windows 11
Fix Cloudflare Origin Certificate Rejection Using Let's Encrypt
Windows Security Not Working After Reset: Troubleshooting Guide
How to Stop Windows Explorer from Hanging
Troubleshooting Chrome Sync Failure with VPN
Docker Build Context Canceled: Fix .dockerignore Mistakes
Windows Security App Not Opening on Windows 10: Fixes That Work
Docker Compose Ports Not Working: Common Fixes
Fix Network Discovery Not Working for Shared Folders
How to Open Windows Security as Administrator
Cloudflare 522 Error: How to Fix CDN Connection Timeout
How to Fix Bluetooth Not Working in Windows 11
Fix Cloudflare Origin Certificate Rejection Using Let's Encrypt
Windows Security Not Working After Reset: Troubleshooting Guide
How to Stop Windows Explorer from Hanging
Troubleshooting Chrome Sync Failure with VPN