alrighty so i have an open nat but sometimes it won't let me connect with certain people in certain games despite them also having open nats. in halo for instence, i can match make with a lot of my friends with no connection problems but i have a 2 or 3 friends that it won't connect me with. both of us have tried resetting everything, re-opening everything and nothing ever works. we can sort of bypass it and use another friend as sort of a 3rd party where we both join the other person but as soon as that person leave it kicks us back to the lobby and we can't connect to one another. i really don't know where to go from here.