Bungie, here is a link to a 10 second YouTube video that shows exactly the matchmaking error. I tried to join my son's fireteam. He receives the same error trying to join mine. https://www.youtube.com/watch?v=iOaLONo5VRg My son and I are playing on two different PS4 on a wired connection on the same router. We cleared the system cache just prior to making the video on both consoles. Our Router has UPnP enabled. We were able to play fine until the latest update. We intially got beavered to death and after the hotfix everything else seems to work except matchmaking. I have tried everything. I even deleted the game from both PS4 and redownloaded it to both systems (took 3+ hours). We are your best customers (households who bought multiple copies of the same game). You have left us twisting in the wind for weeks. Please help! Roll back the last patch if you can't fix it before Iron Banner next week! My PS4 id is danman71, my sons' is Ulrichonfire