I’ve had this problem since saturday
When I join to a group with my friends and when I join to Halo 5 servers it appears to me " Left the team" or “the Halo 5 servers is not available” or “Xbox live is off” :’( please help me, sometimes I’ve could to join a Slayer and after 1 min it Left me on matchmaking :l
I want to play again 
and I’m an player that don’t have any problem for play before this problem 
Thx.