I have been trying to resolve a Nat problem for the last few days. Since connecting Xbox1 when I play COD AW I get Nat strict in lower left on screen. On my old 360 it said Nat open. It would play multiplayer, but it seemed to me there was something wrong. So I investigated what Nat was, and found it is something that allows 2 way communications and would amongst other things restrict me from hosting matches. I contacted my ISP and got a bunch of Gateway settings to change (Did nothing), checked Xbox1 Forums (Got more info didn't work), then checked Comcast's forum (Got answer that seems to work). When I check my network on Xbox1 it says Nat strict and when I startup COD AW multiplayer it says Nat open. On COD it used to say strict, so I will take that as an improvement. But I still don't know if it is the correct setting. I find this most bewildering. Can anyone shine some light on this?