What happens is my cousin opens up a LAN server. I can see it and join it, but the terrain doesn't generate, and it kicks me off with "read timed out" or whatever the error is. we're both on 1.5.2, and the most recent Java. I've tryed adding firewall exceptions too. Also, he can join when I make one, but I can't join when he makes one.
1.5.2 LAN Problem