demandecan

Hi, I have tried to search for answers, but to no avail. About half the time I have been on the last 2 days I cannot get into games. Right as the game is loading (after maps are picked) it says "_____ (gamertag) has left the game", and then I am taken to the title screen and forced to try again. I have only been able to get on once today to play for a little bit. Anyone else having this issue? I have restarted the xbox and router several times. I have opened up NAT settings as well. Thank you for your help.