Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fixing Nginx Upstream Connection Refused and Permission Denied

If you see connect() failed (111: Connection refused) or connect() failed (13:...

Fix ERR_NAME_NOT_RESOLVED in Chrome: Proxy Settings Guide
If you see ERR_NAME_NOT_RESOLVED in Chrome, it usually means the browser can'...

Fix Docker Desktop Engine Stopped Hyper-V Error
You open Docker Desktop and see the engine stopped with a Hyper-V error. This often happens after...

How to Change npm Directory to Avoid Permission Denied
If you've seen "EACCES: permission denied" when running npm install -g, ...

Git index.lock File Exists Even After Deleting: Fixes
You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Docker Network Not Found When Running Container: Fixes
When you try to run a Docker container with --network and get an error like ne...


    Issue queue
Sitemap
Recover from Git Detached HEAD with Reset Hard
How to Merge Unrelated Histories in Git
Troubleshoot Nginx 502 Bad Gateway in Docker Load Balancer
How to Fix Chrome Black Screen with Intel GPU
How to Fix PermissionError with pip Install
Git Merge Conflict Auto Resolve Not Working: Common Fixes
Resolving Docker Context Canceled on Mac
Troubleshooting ERR_CONNECTION_RESET in Chrome
Fix Docker Registry Authentication Failed Access Denied
Windows Update Service Won't Stop – How to Fix
How to Fix Cloudflare 521 Error by Checking Server Logs
Fix 'git pull failed index.lock file exists' Error
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities