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

Fix PuTTY Connection Refused After Server Restart

You restart your server, open PuTTY, and see "Connection refused". This is a com...

Fix OneDrive 'Permission Denied' Sync Errors

You see 'permission denied' in OneDrive sync status on Windows or Mac. Files won't upload or down...

How to Fix Outlook 502 Bad Gateway Error in Outlook 2019

If you see a '502 Bad Gateway' error in Outlook 2019, it usually means your email server or a pro...

Fix GitHub Actions Cache Action Permission Denied Error

Fix OneDrive Not Syncing After Windows 11 Update

After a Windows 11 update, OneDrive may stop syncing files. This is usually due to changed settin...

Fixing Netsh DNS Reset Command Failures

You run netsh int ip reset or netsh winsock reset to clear DNS settings...