Pretty much the title says it all before 6 hours ago i had many match without anything to worry about and had alot of Time just to enjoy Halo MCC but it’s gone now for Me, Mostly it might be the players around the world are less at the time of this post or something happened to the servers that i can not connect to anymore 
The problem would be that’s it not allowing me to connect with people that have lower Connections or simply there too far away from Me