Move login (wifi name and password) from 3rd party to xifinity modem

Thank you for choosing Xfinity, user_rws3uf! You can activate your Xfinity Gateway using the Xfinity app. The Xfinity app then takes you through the necessary steps to set up your gateway and to start receiving Xfinity Internet and/or Xfinity Voice service. Once your gateway is activated, you need to connect to your new WiFi network — choose to either automatically or manually connect the mobile device you’re using. Check out this article for complete details.