Tutorials

How to use mtr to find where packets are actually being dropped on a game server's path, read per-hop Loss% correctly, and tell real network loss from server-side choke.

High ping, choke and loss have different causes and different fixes. Learn to read net_graph, set your rates correctly, and tell a server problem from a connection problem.

The client-side causes of CS 1.6's 'Connection failed after 4 retries' error — wrong port, blocked UDP, firewall, protocol mismatch — and how to work through each.

Players ping fine to every other server but yours? The usual culprit is low server FPS or a CPU-starved VPS, not the network. How to diagnose and fix in-game ping.