I have a Netgear WGR 614 wireless router and a Dell Inspiron 5160 laptop. I find the signal is weak despite usually being only about 15 ft from the router (perhaps because there are two walls with aluminum siding in between). Does anyone know how to boost the signal? I was looking at getting a better antenna for the router, but it is hard to figure out what would work with my setup. Also was thinking of a repeater, but again, hard to understand what would work with the Netgear router.