There are several D-Link extender types, both wired and wireless. I recommend you review each D-Link extension model before buying one. Once you have purchased the extender, it is time to set it up so that you can enjoy extended wifi signals in all corners of your house. Let's take a look at the WPS button, which allows you to configure one of the extender models. If your extender is wired, connect all wires to it. If wireless, plug the extender into an electric socket. The led lights should blink to indicate that the extender has been turned on. Next, press the WPS button on both the router and extender simultaneously for 20 seconds. The extender should blink green to indicate that the configuration was successful. Setup an extender using the dlinkap.local protocol.