You can set your Orbi RBK53 & RBK52 models as an access point by using the advanced setup menu from the Dashboard of your login page. Then you can switch for AP mode to your entire system. The FIOS will assign an IP address to your router. It is up to you that you want to switch your Wi-Fi on FIOS router and let your Orbi to work normally, on router mode. You can even assign IP address by the help of www.orbilogin.com to the clients, whosoever is using the Wi-Fi from your personal home Wi-Fi.