Knowledge base for software setup, errors, and daily tool work.

How to Fix UFW Firewall Port Not Open in Ubuntu

You've configured UFW to allow a port (e.g., 8080) but connections still fail. The port appears c...

Troubleshoot 502 Bad Gateway in Windows Terminal: Checklist

You're using Windows Terminal and suddenly see a 502 Bad Gateway error when tryi...

Checklist for Task Scheduler Auto Start Not Working

You set up a task in Windows Task Scheduler to run automatically at boot or on a schedule, but it...

MongoDB Authentication Failed: Administrator Checklist

Fix Windows Search Blank White Screen in Windows 10

You open the Start menu or File Explorer and start typing, but instead of search results you see ...

OneDrive 504 Gateway Timeout Troubleshooting Checklist

If you see a 504 Gateway Timeout error in OneDrive, it means the server didn't respond in time. T...