Hello My parents have moved into my brothers house... they have xfinity internet wifi built into their cablemodem. My dad has built himself a small man cave in thier garage which does not seem to be able to get a wifi signal. We cannot move the cablemodem. Of course they have access to the wifi SSID and password but it does not go any further than the kitchen. I am looking for something that will extend the range of the wifi signal that either resides in the garage or in the basement where the cablemodem is located. Obviously I don't want to mess with my brother's current setup so extending the range of the wifi signal is what im trying to accomplish. Do I need a repeater? another wifi router that will setup as a bridge? They do have a wifi router that used to be in their home it is a DLINK DIR 628 .. could this be used to do what I want?