I type rxdelay: 0 - I know the syntax - no problem there. Thanks for your help anyway and yes I know that the game's connection is poorly programmed.

I've tried nullmodem with rx and txdelay = 0 but it was still bad... so I don't know - I think the problem is that on one of my PCs the connection is wireless - 54mbps - so I think maybe you have a better network.

Hi! Here I'll explain how to set up multiplayer for jurassic war (many thanks to h-a-l-9000 for helping me set up the modem mode): Null modem: Server: First you have to start DOSBox 0.74 Options.bat - find [serial] and make serial1=nullmodem (you can choose serial2/3/4 if it doesn't work with 1). …