Checklists for software errors, setup, and tool workflows.

SSH Public Key Permission Denied vs Password Authentication: Fixes

You can SSH into a server using a password, but when you try the same connection with a public ke...

Fix Microsoft Store Connection Refused DNS Error

When you open Microsoft Store and see a 'connection refused' error, it's often a DNS problem. You...

Fix VSCode Extension Host Terminated Unexpectedly on macOS

You're working in Visual Studio Code on macOS when the editor suddenly stops responding, and a no...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Fix 504 Gateway Timeout in Command Prompt

If you see a 504 Gateway Timeout error, it usually means a server upstream (like a proxy or gatew...

Windows Update Cannot Connect to Update Server: Fixes

When Windows Update shows “cannot connect to update server,” you may see error codes like 0x80072...