I recently moved into a new place. The router is on the other side of my wall and between this wall is a thick stone wall. I am trying to use the current coax plug in my room to hook up my pc. Comcast, like many other companies, will not allow you to use two modems unless you pay more. I am just looking to convert the coax plug into ethernet just to setup my one device. Is there anything out there that can do this? I bought a Motorola MOCA adapter thinking it could but I cannot seem to get it working.