your going to have issues playing xlink over system link with a console that is drive flashed only mate the 360 has a ping limit in it to prevent such things going on unless ur playing someone on the same network (no need for xlink kia) or in the same town on the same provider i think anything over about 30 ping wont allow you to connect that's why i assumed u was jtag or glitched sorry my bad for just assuming it was.