Three Broadband and setting up Wi-Fi on Ring 2

This week I have moved to Three Broadband from Virgin. I have set up all the other 28 devices in the house no problem. The one that will not change networks is the Ring 2 door bell. I still have virgin for 30 days so tried going back to that and not a problem and it works but when I cut off Virgin in 30 days my Ring 2 would not like my new Three Mobile Broadband provider?