Our modem for tv/internet/phone is in the basement. I may soon work from home, which would require an internet connection. THe best place to set up my work area would be on the 2nd floor and I do not want to try to run an ethernet cable from the basement. I have an existing, tho not active, coax connection in the upstairs room. If I make that connection active can I put a 2nd modem on it for the work connection? ps - wireless connection for work not an option.
Powerline adapters might be an option for you too .