Checklists for software errors, setup, and tool workflows.

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Fix WSL Ubuntu Internet Not Working After Windows Restart

You restart Windows, open WSL Ubuntu, and suddenly there's no internet. ping google.com

Fix Nginx 502 Bad Gateway in Docker Containers
You're running an Nginx container in Docker, but instead of your app, you see a 502 Bad Gateway e...

Fix VS Code Python Interpreter Not Showing or Selecting
You open the Command Palette, type Python: Select Interpreter, and nothing happens. Or t...

Fix PostgreSQL Connection Refused Due to pg_hba.conf
When a client gets 'connection refused' from PostgreSQL, the first thing to check is the pg...

Fix Windows Update Error 0x800f081f Stuck Installing
If Windows Update is stuck at a certain percentage and eventually fails with error 0x800f081f, it...

Fix Windows Security Connection Refused Certificate Error
When you see 'connection refused' combined with a certificate error in Windows Security, it usual...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix WSL Ubuntu Internet Not Working After Windows Restart

Fix Nginx 502 Bad Gateway in Docker Containers

Fix VS Code Python Interpreter Not Showing or Selecting

Fix PostgreSQL Connection Refused Due to pg_hba.conf

Fix Windows Update Error 0x800f081f Stuck Installing

Fix Windows Security Connection Refused Certificate Error

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