We have recently had building work done to our house with an extension/annex we are renting out as a seperate flat/holiday home. We have had internal wiring all done new and that includes an ethernet socket in said flat (which corresponds to one of 4 sockets on the wall by the main router and phoneline). The Router is a fair distance away from the guest rooms, so what would be the best way for me to utilise the socket in order to extend the Wifi/Internet to the future guests?