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 notesHow to Fix Windows Search Indexing Not Working
If Windows Search stops returning results or takes too long, the indexing service is likely stall...
Fix Chrome Black Screen on Startup Due to Hardware Acceleration
If Chrome opens to a black screen after you launch it, the issue often involves hardware accelera...
Git index.lock File Exists: Quick Fix Checklist
You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...
How to Force Enable Windows Defender Real-Time Protection
Windows Defender real-time protection sometimes gets disabled by group policies, third-party anti...
Fix Docker Network Not Found Error: Step-by-Step
When Docker reports 'network not found', it usually means the container tried to connect ...
Issue queue
SitemapTroubleshoot Folder Exclusion in Windows Search
Windows Security App Configuration Error Fix
How to Add a Bluetooth Device in Windows 11
Resolve Chrome Sync Error Codes
Pip Externally Managed Environment: What to Do
Chrome Sync Not Working After Password Change: Fixes
Docker Permission Error on Linux: Step-by-Step Fix
Dart/Flutter IntelliSense Not Working in VSCode: Fixes
Troubleshooting Cloudflare SSL Full Strict Failures After Update
Fix Windows 11 Installation Assistant Stuck at 99% with Clean Boot
How to Stop Chrome Access Violation from Antivirus
React App Build Fails with Out of Memory Error – Fix
Windows Security App Configuration Error Fix
How to Add a Bluetooth Device in Windows 11
Resolve Chrome Sync Error Codes
Pip Externally Managed Environment: What to Do
Chrome Sync Not Working After Password Change: Fixes
Docker Permission Error on Linux: Step-by-Step Fix
Dart/Flutter IntelliSense Not Working in VSCode: Fixes
Troubleshooting Cloudflare SSL Full Strict Failures After Update
Fix Windows 11 Installation Assistant Stuck at 99% with Clean Boot
How to Stop Chrome Access Violation from Antivirus
React App Build Fails with Out of Memory Error – Fix