Checklist for Debugging 502 Bad Gateway in Command Prompt
You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix OneDrive SSL Certificate Error on Windows 10
If you see an SSL certificate error when using OneDrive on Windows 10, it usually means OneDrive ...
Ubuntu Windows Security Compatibility Troubleshooting Guide
If you run both Ubuntu and Windows on the same machine—either in a dual-boot configuration or thr...
Fix Windows Activation File Locked Registry Issue
You try to activate Windows, but get an error saying the activation file is locked or the registr...
PowerShell Offline Installation Checklist for IT Admins
When managing air-gapped or restricted networks, installing PowerShell offline can be tricky. Thi...
Fix Chrome Crashes When Opening PDF Files
You click a PDF link in Chrome and the browser freezes or closes entirely. This is a known issue ...
Issue queue
SitemapHow to Fix Command Prompt Update Failed Setup Error
Windows 11 Command Prompt Auto-Start Not Working: Fixes
Fix "Outlook Cannot Find the Path" Error on Windows 10
How to Resolve OpenVPN Remote Server Connection Error
Windows Search Skipping Folder: How to Fix
Fix OneDrive Sync Service Unavailable in Office 365
How to Resolve Teams 502 Gateway Error
MongoDB Auth Error: Common Causes and Solutions
Fix Chrome Profile Disappeared After Crash
How to Resolve Windows Update File Locked Registry Error
How to Fix Windows Defender DNS Error on Windows 11
Resolve Git SSL Certificate Problem on Mac
Windows 11 Command Prompt Auto-Start Not Working: Fixes
Fix "Outlook Cannot Find the Path" Error on Windows 10
How to Resolve OpenVPN Remote Server Connection Error
Windows Search Skipping Folder: How to Fix
Fix OneDrive Sync Service Unavailable in Office 365
How to Resolve Teams 502 Gateway Error
MongoDB Auth Error: Common Causes and Solutions
Fix Chrome Profile Disappeared After Crash
How to Resolve Windows Update File Locked Registry Error
How to Fix Windows Defender DNS Error on Windows 11
Resolve Git SSL Certificate Problem on Mac