Help please. Unable to join lobby.

Hi humans, I’m having this really annoying problem, I can’t seem to join any lobbies when I’m playing with friends or by myself. It always tells me I’m unable to join, anybody know how to fix this? Would be really appreciated. Thank you, bye.

Had the same problem right after the update was made. Hard reboot of XB1 solved the problem - Power OFF then ON.

Tried that with disconnecting it from the wall. Also, quitting the game and launching it again. I can play other games just fine.