Trying to set up Deco W6000 with iPhone 12 Pro Max. Using auto configuration I get a pop up saying "Deco wants to join Deco xxx." I allow to join, and it does, but then the app goes back to the "looking for Deco" screen and doesn't recognize that it is connected. Have been through many resets and fully powering down modem and router....no change. Any help is appreciated!