I already have a WiFi router on my unlimited Broadband connection but there is a distance issue to the office I'm creating. Quetions are: Is there a booster I could buy and use? Or, can I go and buy another router, plug it in and crack on? If yes, are there broadcast frequency issues I need to be aware of and where could I find the frequency of my exisitng router so I can know what to avoid? All advice appreciated, thank you.