Routers suck

[ZebraRampage]

Now I have a new, but similar scenario. My dad got a new computer, and we hooked up the cable modem and the ISP. Then I tried to hook up the router, but it couldn't configure it. I just don't understand why the router won't work. Basically the way it's hooked up is the LAN port on the cable modem has an Ethernet cable plugged in, and the other end is hooked into the Internet port on the Router. Then the second ethernet cable is plugged into one of the 4 ethernet ports on the router, and the other end is plugged into the ethernet port on the computer. So basically, the computer is hooked up to the router, and the cable modem is hooked up to the router. I don't know what the problem is.