I recently bought a new router without looking at what cables my current one uses. When I got home ready to install the new one I found that the new router doesn't have a coaxial cable port and the old one does. I unplugged the coaxial cable and everything works normally still TV, wi-fi, phones, everything. What was it there for?
EDIT: I used to have cable TV but now have Satellite could it be something the cable provider just left?