I recently moved my computer setup to a different place in my basement. My internet modem is still located in the room upstairs and I want to move it downstairs to my new area so i can use ethernet. The modem has a coax cable going into it, providing the internet access. My new spot has a cable just like it, which I use for my HD DVR cable box. If I were to just unplug the cable from the box and plug it into the modem would it work for internet access?