battlefield 3 multiplayer update makes xbox freeze?

i have an xbox 360 and BF3, it keeps asking me to download the update but every time i do it makes the game freeze?? i dont know what to do about it and i just now downloaded the "back to karkand" map pack and it wount let me play unless i have the update... and when it finally does let me into a game im the only one and i sit there forever and cant move while it says "waiting for 6 more players" does this happen to anyone else?? please help me resolve this problem! thank you