Displayed on screen at startup.
Communication error, resource unreachable or unavailable.
([ExchangeXBOXAuthCode] :: 0x800C0008)
Hit OK then Play and another error
BIOS Error (0x00050017)
Communication error, resource unreachable or unavailable.
([GetServers] :: 0x800c008)
I'm unable to see any servers or login to play. I have reset the game. Reset the Xbox. Deleted and reinstalled game. Restarted router. And repeated all the above several times.