Plutonium

Dss0 so does that mean we just cannot play together at all? or have him update his launcher and we can only play through other servers and not just with each other

Me and my friend go to the same college and we are trying to play BO2 zombies together and it is not working. I have tried changing my network to private we have similar IP addresses since we are a couple blocks away at the same college, but they are a few numbers off. Not sure if we need to use UPnP but we dont have access to routers, is there a way around this or can we just not play together. He also cannot join anything, whether it is a game with me or even all the servers, he can start a custom game himself but cannot join me and i cannot join him. Please help, thank you!!