Ahh, thats what happened!. (Score 1)

I was one of the thousands who received a brand new XBOX 360 this holiday, and tried to connect to XBOX Live and use the free 48 hour trial. I was shocked to see a prompt saying that the servers were "Unavailable". I quickly thought, "oh darn, it must be my router's NAT or ACLs preventing me from connecting", but I should have known better not to blame my own configurations first than to blame good ol' Microsoft.