Question about TP-Link Deco M9 Plus Triband WLAN Mesh Set of 3 (AC2200)

Hello I also bought the Deco M9 Plus. Set of 3 Everything connected, super easy and fast. Now the wifi signs on the Sunrise Internet Box are active and I can choose freely between 2.4 GHz and 5 GHz from the Sunrise Box. I can also use the wifi from the Deco M9 Plus. Is it possible to switch off the wifi of the Sunrise Internet Box and only use the Deco M9 Plus? And does everything work even if the wifi of the Sunrise Internetbox is switched off? Thank you very much