Hopefully someone can help with this, it's been driving me mad... My ATV4 is refusing to stay connected as a home hub. I can sign in and control everything with Siri, then a short while later it stops working and the Home app on my phone reports the ATV as disconnected. I've reset my whole HomeKit configuration, reset the ATV, and set up my phone as new, and still having this issue. The only thing I can think of is not letting the ATV go into sleep mode - Apple's support page is vague on whether you can let it sleep or not. Anyone able to help with this?