Basic Internet Connectivity And Modem Help

[CatfishRivers]

Hi. I have a Google TV device (Logitech Revue) and through the settings the option to set a set a static IP are given. I go to settings and enter appropriate values to change the DNS - however the "set" button cannot be highlighted and won't click. All that can be highlighted and clicked is the "cancel" button. So my internet remains on DHCP.

I'm connected directly to modem by ethernet.

Other people with the same device as mine are able to go to their settings and set-up a static IP.

So my question is this: Is Comcast somehow prohibiting me from setting the static IP? Or would this be some problem/limitation with my internet device?

[EG]

Comcast assigns a *dynamic* IP to a residential connection. If you really needed a WAN / public static IP then you would need to switch to their business class service. If you would use a home networking router, you could assign a local static IP address from the router's built in DHCP server. Although I am not certain, nor am I familiar with that device, you shouldn't need a static IP. The Google device should be able to use an "automatic configuration / DHCP / obtain IP and DNS automatically" setting.