My garage door opener has the MyQ built-in (no separate MyQ hub). So when the wifi part disconnected, there was nothing to replace. I installed the Zen16 and a dry contact adapter as described by erniemillerDeveloper in this Link: https://community.hubitat.com/t/diy-garage-door-control-solution/34095.
I also got the MyQ wifi connected again, so I have both options, but will probably just use the Z-wave.
I have not figured out what to do with the other 2 relays