360: Friend cant connect to my party with Moderate NAT?

Question

Me and my friend cant ever play in the same party on COD4. He has Moderate NAT and he cant join me but I have open NAT which is supposed to be compatible with both strict and moderate. Why cant he join if I have open NAT? I hate having to party up through a 3rd person. Someone please tell me how to fix it, thanks.

Answer 1

some people can just not connect for some reason.  It is a networking problem.  It has to do with your routers and your ISP's.  There is not much you can do.