Here is a video to get you started on using the App to setup your new Milo. Just search the Apple App Store and Google Play Store for "Milo Wifi" and download the app.
Please remember to connect to your Milo System in Wifi Setting on your device during setup. As the Milo is configured throughout setup, your device may switch back to your existing router's wifi during setup. So please check that you are connected to your Milo.