Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
That's not how it works. Only the Roku remote uses the Wi-Fi Direct connection. The app should find it automatically if your Roku and phone/tablet are on the same network. If your Roku isn't connected then there's no way to use the app to get it connected.