athlaka

I'm having an issue with Halo 4: I have a valid 3 month gold membership and im trying to play Halo4 with my friend by signing him in on a Xbox Live Guest account. When we sign in with the account, it kicks both of the accounts out and gives us the following message "Xbox live gold membership required, sign in with a valid xbox live gold account." I can play fine without a guest, its only if I try to log in the guest is when I get kicked out. Does anyone know what to do? It's annoying the heck out of me and I didn't have any issues until now. If anyone knows how to get into contact with 343 to raise this issue, please let me know as this is bull since I just bought the game a few weeks ago. Thanks.