I just got a 2010 AirPort Extreme to replace my February 2009 model. The 2010 model does not seem to work with my cable modem. It is not faulty because I have already tried two different ones. My MacBook will recognize and I will get a green light, but no internet connection. When I connect my 2009 model AirPort Extreme I do get internet connection. What the heck is going on?