Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Docker Nginx 502 Bad Gateway: Memory Limit Fix

You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...

Fixing Nginx Upstream Connection Refused and Permission Denied

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

Chrome Certificate Error: Not Secure Site Workaround
You're trying to reach a site and Chrome shows a full-page warning: “Your connection is not p...

Docker Desktop Engine Stopped on Mac M1: Fixes That Work
On Apple Silicon Macs (M1, M2, M3), Docker Desktop sometimes shows the error “Docker Desktop engi...

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome Safe Mode
When you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome while running in Safe Mod...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer on GitHub
If you see fatal: unable to access 'https://github.com/...': SSL certificate proble...


    Issue queue
Sitemap
Windows Shared Folder Access Denied Fix
Chrome Extensions Not Loading? Reset Chrome to Fix
ERR_CONNECTION_RESET Chrome Android: Quick Fixes
VS Code PowerShell Scripts Blocked – Quick Fix
Resolve Chrome Status Access Violation Error Guide
Nginx Port 80 Connection Refused: Causes and Fixes
Fix Virtual Environment Not Activating in Terminal
Fix Cloudflare DNS Propagation Delays
Docker Compose Port Already Allocated: How to Fix
Git LFS on GitHub: Setup Guide and Common Fixes
Nginx Config Test Permission Denied Fix
Docker Compose Multi Env File Merge Fix
Desk note

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