If you have the Amazon home wifi network like mine, you cannot have the same network wifi name for your own ATT router and the Ruckus Wifi. The reason this is a different network and you cannot extend it using different type/brands of wifi routers.
I have the 3 Wifi networks in my home:
wifi-home: for visitors and my family
wifi-devices : for my home devices (tvs, sonos, alexas, kevo, doorbell, garage doors,…)
wifi-spectrum : not used.
wifi home and devices from Ruckus. And wifi-spectrum from my cable company.