Nginx Upstream Connection Refused: Diagnosis and Fixes
When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesVS Code Source Control Not Detecting Changes: Disable Git Fix
If VS Code stops showing file changes in the Source Control panel, Git integration may be stuck o...
Fix VS Code Source Control Not Detecting Changes with Permission Denied
You open VS Code, make edits, but the Source Control panel shows no changes. Or you see a "pe...
Fix Windows 11 Installation Assistant Stuck at 99%
Many users report that the Windows 11 Installation Assistant gets stuck at 99% during the upgrade...
Windows 11 Update Stuck at 0%: Permission Denied Fix
If your Windows 11 update is stuck at 0% with a "permission denied" message, the installe...
Fix Cloudflare 522 Error with Nginx Configuration
You're seeing a Cloudflare 522 error: connection timed out between Cloudflare and your origin...
Issue queue
SitemapFix Windows 11 Installation Assistant Stuck at 99% Registry
How to Troubleshoot Windows 11 No Internet on Wi-Fi
Docker Image Build Fails with Context Canceled
Git Detached HEAD Rebase Recovery Guide
Resolving Git Rebase Lock File Error
Guide to Configuring Windows Search Index
npm Install Permission Denied After Updating Node
Resolve 'Permission Denied' Error in VS Code Integrated Terminal
Remote Desktop Connection Fix Guide
How to Restart Bluetooth Service in Windows 11
Fix Docker Build Context Canceled Error in Docker Desktop
How to Fix Git Merge Conflicts Between Two Branches
How to Troubleshoot Windows 11 No Internet on Wi-Fi
Docker Image Build Fails with Context Canceled
Git Detached HEAD Rebase Recovery Guide
Resolving Git Rebase Lock File Error
Guide to Configuring Windows Search Index
npm Install Permission Denied After Updating Node
Resolve 'Permission Denied' Error in VS Code Integrated Terminal
Remote Desktop Connection Fix Guide
How to Restart Bluetooth Service in Windows 11
Fix Docker Build Context Canceled Error in Docker Desktop
How to Fix Git Merge Conflicts Between Two Branches