Originally posted by Golagoda
It can be done, I've done it before but it's near impossible, both users need to have their internet connections that the PS3 is using in DMZ's, and have open NAT types, with no connection problems between both people, you basically need to set it up like both PS3's are directly connected to each other over the internet like they would with an ethernet cable plugged directly between them.
so we will both try DMZ and see if that works? (our nat types are always open)