The Range Expander is a really precious piece of hardware to help you boost that weak Wi-Fi signal, and a very solid way of boosting the signal sent through thick walls, or at a distance from the source, most Range Extenders can auto configure to work even at default settings. Some of them have even a button to auto configure, basically what it does is repeat a signal almost the same way. Any other signal can also take advantage of a repeater booster, and to help get a better access in order to reach the PC throughout the entire network.
Beware that auto configuration will not be able to function correctly if the network has been secured by a password, which encrypts the network as WEP (wired equivalent privacy) or a WPA (works progress administration). In that case always follow the documentation for the range extender you just bought. The SSID transmitter of the router identifies itself on the network, and this is the signal that reaches the range expander. The same way a radio broadcasts a radio signal, a range expander also does a steady broadcasting, and with an extra strong signal. While other Wifi devices might just drop from strong to weak in almost 25 feet.
Know if the network speed is slow, it will only repeat, propagate the same speed you already have, so it is important to have a decent internet speed. You can check this by visiting sites that test the speed you have. A range expander is a great addition to any wireless network , it goes a great distance and it is actually very comfortable to cut the wires that keep you from moving freely around, letting you be able to work more productively in your backyard, in the kitchen while looking for that special recipe to cook, or just relaxing in the living room sofa while doing some extra work. A very useful piece of hardware to have and available at very reasonable price.
Make sure the security is not enabled on the router,click the auto configuration button,and right after more or less 30secs the link activity light should be blinking showing activity on the range extender,for secured wireless network make sure you access the router through its ip address.
This usually defaults to 192.168.1.1. Type it in the address bar of your favorite browser either Firefox or Internet explorer,they can both interpret the ip address to guide you straight to the router settings,once there, make sure you write down what your security information is, so that later you can input it into the range expander, so they can sync and work in harmony.