I added my garage door openers to HomeKit via Chamberlain's MyQ hub/bridge. Things work great on my phone -- either with the Home app or using Siri. I invited my wife to share HomeKit with her. None of the garage doors are responding. Our home hub (master bedroom, which I actually have the living room AppleTV signed into the same account) shows disconnected or not responding on her phone. Any tips what could be wrong?