Yesterday, I picked up a Cat 6 crossover cable, I plugged them into the back of my computer with Windows XP SP2, and my bros which has windows XP SP1. I never tried LAN before, and the first thing that popped up said, Little or No Connectivity. My bros computer said everything was fine and connected on his side. When we tried playing a LAN game of Battlefield 1942, the created game would not show up on the Local games list. I tried changing the IP address, and that got rid of the Little or no Connectivity sign, but we still cannot play LAN games. This is driving me insane. Can anyone help me?