I’m using an XP laptop and connecting through a crossover cable to the 360. Using ICS, it usually tells me that 192.168.0.1 is being used, even when it isn’t. And in the rare event that it does let me use ICS, DNS fails on the 360. I’ve also tried creating a bridge, and that too gives me IP and DNS failures, unless I do those manually, but then I get a MTU error even though my MTU is at 1500.
I’m really not sure what else to try.