getochkn :
Well either you have a router and not a modem or you have a dsl or 3g modem and not a cable modem.
Where did you get this netgear "modem" and what is the model number of it
I figured out I have to get a cable modem and not a dsl one.
Now, I have to decide between the netgear CM400-100NAS, netgear CM500-100NAS, or the Motorola SB6141