I'm not exactly savvy to networking and computers in general, besides having used the internet and software and such a lot. However, I have a broadband cable internet connection. It goes to the modem that my isp gave me and travels to my computer via USB. And that's the problem.. Ethernet won't work. Or will it? I don't know, that's why I'm here. When I connect the modem via USB it is entirely recognized and instantly works. If I plug it in with Ethernet it doesn't work. The light labeled "PC" is dark and the send and receive lights are dark also. The computer does nothing to acknowledge the modem in this state, and has no connection to the internet. I only care because I bought a router to use my laptop wireless and the only way to connect to it from my modem is to use Ethernet. The router's internet light is dark when connected to my modem, but if I connect my modem to my computer with USB and then my router to my computer with Ethernet, the router has internet and WLAN is activated. Doesn't help much though, considering the computer is attached. If it helps, I'm very sure this modem worked with Ethernet on a different computer at one time, but not on the one I had before my laptop. Is it possible for just the Ethernet related parts of the modem to have been fried in a surge caused by lightning? If so, that could be it, maybe. I'll provide any information you ask for if I know how to get it. But, yeah, any reason the Ethernet does nothing? Do I have to set it up in some way that I haven't tried? Does MAC have anything to do with this?