Hi, I recently moved into an old house and the modem is plugged into the wall with both a black ethernet-style cord (I think it is a telephone cord. Showing my youth here...) and a thick coaxial cable. I want to move the modem to the other end of the house where there is only a plug for the black ethernet-style cord. There doesn't seem to be any place for a coaxial cable other than the wrong end of the house. Is it possible to get a new style of modem that doesn't need a coaxial cable for an old house like this? Thanks for your help
The coaxial cable is your link to the internet. If that's not plugged in, no internet.
The question is why do you want to move the modem? Generally the internet comes into your house to the modem and then you can distribute the connections around your house (ethernet, wifi or ethernet over power)
I have a gaming computer without a wifi adapter, so need an ethernet cord plugged in. Housemates don't want a cable stretching the entire length of the house. The other option I've considered is a WiFi dongle for the computer, but I'd rather have ethernet. So the phone line plug can't provide the internet alone, it needs the coaxial? Can you explain what you mean by ethernet over power?