Netplay crashes when game starts.

[ultrax]

Whenever I press play in the lobby, the game will crash and the connection will be lost. I suspect it's my router's problem - it's a Netgear, as it only happens on my own wifi network. I read a guide saying to enable a TCP/UDP port forwarding service, and enter my IP address in the router configuration. However, I play on my laptop, which disconnects and reconnects from the network when I leave the house and come back. If my IP isn't static, what should I enter in the router configuration to allow my laptop to use netplay regardless of IP? Or is there a better way of getting around this so the transversal server works by default?