Note that if you are changing the connection to a cable modem between a computer and a router, you need to do a complete reset of the network every time you make the change. To do this, shut everything off. Wait about 5 minutes. Turn on the modem first, and wait another 5 minutes. Then turn on the device that is connected directly to the modem (either the router or the computer), then turn on any other computers that will connect through the router.

Steve

Thanks volcano.

One of the problems that I'm experiencing, I think, has to do with my lack of experience setting these things up.  The cable modem has the option to connect via USB or via ethernet.  When I connected it via ethernet, I couldn't get the modem to connect.  When I used the USB port, it did.  Is there some kind of setting on the computer that I need to change to enable the ethernet?  I noticed when I had it connected that there was a red light on the right of the ethernet cable and a flashing green light to the left of it.  Maybe that's the problem?

If you are changing between the USB connection and the the ethernet connection, you still have to do the complete reset of the network as I described in my previous message.

Steve