At my home we use a Linksys E1000 wireless router with laptops that are running either Lion or Snow Leopard and, a tablet running Android Gingerbread. The only problem is that, when I try to connect from a different floor, the wifi signal strength/clarity can waver. Sometimes it's strong enough to watch a Youtube video without pausing to buffer. Many times though, the devices are "Unable to connect". If a repeater or something would be good to add to the network, I'd like some advice, at least for getting a stronger/clearer signal for my Macbook Air running OS Lion. Thanks.