@12Rick34,
Please provide some more details regarding the model of your device, and your router so we can know what settings/features you have access to.
For WPS, there is only a short window in which the two buttons need to be pressed, so make sure that you are doing so in a timely manner. Connecting to the web interface of whatever extender you are using and configuring the settings of the extender to match the settings of your main network, through the WebUI, the process will consist of entering your SSID, password, and settings such as encryption method.
I recommend taking a look at this FAQ, as it provides details of how the WPS pairing works and provides links to the other setup methods in case the WPS setup fails: Configuring Your Extender via WPS