Finally someone who is having the same problems! (sorry to hear yours is not working either) We have double and triple checked/tried the following: we ran xbox one multiplayer diag. everything checked out ok. both our NAT types are OPEN (also we play destiny and other games together just fine) we set our xbox to be the DMZ on our routers and tried playing again, still didn't work. We forwarded every port we saw that xbox/divinity might use and it still didn't do anything. We even took our routers completely out of the equation , we plugged in our xbox straight from the cable modem to the xbox.. still nothing. Me and my friend are both extremely frustrated to no end. Someone please help. Please bump this thread and bring attention to it, i want to play this game so bad with my friend.
