-----------------解决办法之一-----------------------
逛英文网站看到的:
FYI It doesn't matter if your connected to live when playing on kai. Just disabling auto-sign in should be enough. Or you could always block port 3074 outbound and inbound on your router to block live altogether.
说是在路由器中阻止block掉 3074 端口(进和出),就可以完全block xbox live 了