setting up a pppoec onnnection

I am trying to set up a PPPOE connection with two computers.I am using a StarTech br4100 router its not wireless.Both systems are using windows xp pro.I have updated the firmware on the router logged on to the config site setup ppop and the router only lets the computer in the living room on line.I want my computer to in the bedroom to login too.Please help as im going to snap lol a site that explains how to do this would be great.Thank-you in advance if you need more info just ask