Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix DNS Probe Finished NXDOMAIN Error on Mac

You're browsing on your Mac and suddenly a site won't load, showing the error DNS...

How to Fix Nginx 'Upstream Connection Refused' Error
When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Fix VSCode Git Auth Failed: Expired Token
You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...

Fixing Nginx 502 Bad Gateway with Docker and Load Balancers
If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...

Fix Git 'index.lock' Error in VS Code
If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...

Docker: No Space Left on Device After Pulling Image
You pull a Docker image and get no space left on device. The image might be small, b...

Issue queue
Sitemap
Fix Docker Container Exiting with Code 0
How to Resolve Nginx Redirect Loop in WordPress
Checklist for Resolving Nginx 403 Forbidden
How to Locate Docker Desktop Engine Logs
Windows 11 Bluetooth Driver Fix Guide
Resolve Remote Desktop Connection Failed 0x204
Resolve Docker Compose Env Variable Substitution Errors
Fix Windows 11 Installation Assistant Stuck at 99%
Python Requests GET Timeout: A Practical How-To
Taskbar Visible But No Icons – Solutions
Git Clone Connection Timed Out? Firewall Fixes
Nginx Configuration Test Failed: Fix Server Block Errors
Desk note

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