Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

Fix 'Secure Connection Failed' Error in Firefox for Android

Fix 'Secure Connection Failed' Error in Firefox for Android

If you see a 'Secure Connection Failed' error in Firefox for Android, your browser cannot...

Fix Docker Nginx 502 Bad Gateway with MySQL

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

docker compose set environment variable from file

docker compose set environment variable from file

When running Docker Compose, you often need to pass environment variables to your services. Hardc...

Fix 'Permission Denied' When Running pip install --user

Fix 'Permission Denied' When Running pip install --user

When you run pip install --user somepackage and get a Permission denied...

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

If you've seen the message "You are in 'detached HEAD' state" while using Git...

Fix Nginx 502 Bad Gateway with Docker and PHP-FPM

Fix Nginx 502 Bad Gateway with Docker and PHP-FPM

You have a Docker setup with Nginx proxying to a PHP-FPM container, and you're getting a 502 ...

Issue queue

SourceTree Detached HEAD: How to Fix It
Troubleshoot Chrome Black Screen Due to GPU Issues
How to Fix Chrome Certificate Authority Invalid Error
How to Stop Chrome Black Screen on Second Display
How to Fix 'Git Remote Origin Already Exists' Error When Cloning
How to Fix Firewall Blocking Shared Folder Access
How to Push Large Files with Git: A Checklist
Fix Windows Security App Crash in Safe Mode
Fix 'Git Remote Origin Already Exists' Error
How to Fix npm init Not Creating package.json
How to Restore Edge Sync After an Update
Windows 11 Update Stuck at 0% – Clear SoftwareDistribution Folder

Troubleshooting paths

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