This is unbelievable that there hasnt been a proper fix for this yet. my bf and I love gaming together and for weeks havent been able to join the same fireteam! So far the only thing that seems to work is running Test Connection on the PS4's when in orbit - I cant believe we're having to jump through these ridiculous hoops just to play together, everything worked fine before ROI, we'd been playing Destiny for over a year with no issues, sort your game out Bungie!!!