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

Systemd Service Not Starting After Reboot: Practical Fixes

You've set up a systemd service, it runs fine when you start it manually, but after a reboot it s...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fix KMS Activation Error: Port 1688 Already in Use

How to Set Up OneDrive Sync After a 502 Bad Gateway Error

If you see a 502 Bad Gateway error while trying to set up OneDrive sync, it usually means somethi...

How to Fix Microsoft Store Proxy Server Errors

If you see a proxy server error when opening Microsoft Store, it usually means the app can't reac...

How to Fix OneDrive Proxy Error: Setup Guide

If you see a proxy error in OneDrive, it usually means the app can't reach the internet through y...