That particular device is not what you are looking for. That is meant to take devices without wireless and bridge them to your wireless router. It sounds like you already have wired ethernet throughout the house but you have weak wireless signals in areas away from the router. You have 2 options, a wireless range extender or a second router. A wireless range extender like a LINKSYS RE1000-NP Wireless-N Range Extender would be placed in a location within range of your existing wireless signal and then would push that signal further. Unfortunately, the reviews of a lot of range extenders are mixed to downright bad. If you do have wired all throughout your house, the second router is a better idea. Plug the router into the weakest area of your house and it creates a new network to attach to. It will then route all its connected devices through the first router and out to the internet. Just be sure to set it to a different sub-domain, i.e. first router is 192.168.1.1, second should be 192.168.2.1.