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 Caused by Antivirus Blocking

You try to load a website and see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, or simi...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix Docker Compose Port Already Allocated Error

When running docker-compose up, you may see an error like Error starting userl...

How to Resolve Git Unrelated Histories Merge Conflict
When you try to merge two branches that have no common commit history, Git refuses with fat...

Docker Container Exits Immediately: 'Command Not Found' Fix
You start a Docker container and it exits immediately with a message like /bin/sh: 1: somec...

Fix 'Git Remote Origin Already Exists' When Updating Remote URL
You run a command like git remote add origin https://newurl.com/repo.git and get


    Issue queue
Sitemap
Docker Build Context Canceled: Checklist and Fixes
Troubleshoot Windows Update Service for System Restore
Docker Build Context Canceled: Fix .dockerignore Mistakes
Resolve Chrome CA Error in Linux Terminal
Docker Desktop Firewall Block: Engine Stopped Troubleshooting
Windows Update Service Disabled? Registry Fix Steps
Troubleshoot Unbound Breakpoints in Remote VS Code
Fix Windows 11 Upgrade Assistant Not Completing
Fix pnpm ERR! Cannot Find Module – Practical Steps
How to Fix npm install Permission Denied Error
Resolve Git Fast-Forward Merge Error
VSCode Git SSH Key Error Troubleshooting
Desk note

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