Doorbell not connecting to wifi 6

I have just updated my wifi to a wifi 6 router. I couldnt just change the router details for whatever reason. When trying to connect device it couldnt find it. I was at a loss so thought i would deactivate then reactivate. But now i cant reactivate my doorbell. I have gone through the set up device several times and cannot connect. I am at my wits end. Please help