In order to perform the WPS setup, you need to make sure that the router has the WPS button on its side. In the WPS method of configuring the Netgear wifi range extender, you just need to press the button and the extender and router will do the rest of the setup. As soon as you press the WPS button on both the wifi range extender and the router, there will be a connection which will establish between them and they will communicate to setup the extender. When the LED light on the extender will turn solid green it means that the extender has successfully setup.
https://www.extendersupport.net/