Nothing, just my PC, and there's nothing with mine either, my internet and everything is fine. Like I said, it's nothing to do with anything outside this Mod, it's something going wrong with the Dayz Mod or something associated with it. It's nothing to do with too much bandwidth strain because his ping goes from 40 in lobby to 5000 in-game when I'm not even playing. Makes no sense. Edit: There both wired, I gave him my high speed ethernet cable and still no difference, you don't understand, it is nothing to do with internet, we play Arma on 40-60 ping fine, at the same time,