I'm not understanding the setup. Did you have a wirelss router that you used that communicated to anoter modem device?
Or is the modem a wireless router that has ethernet ports that you want to use now?
Like GroundZ said...who is your ISP?
When the icon says disconneted, that usually mean there is nothing coming thorugh the port at all. Limited connectivity usually mean there is some communication going on, but you don't have the right information like MAC address, software for the ISP, IP address, etc. to get to the network.
Do you see any lights on either of the ports when hooking up with wire?
Need more info.
Famos