Has the "No Response" problem been addressed? I'm new to HomeKit and have installed a bunch of devices from Hue, LifX, and iDevices. They and my iPod are all on the same WiFi network and I'm only trying to use them locally, not remotely so I don't think I need a hub. All the devices work fine with the Home app when first installed, but after an hour or so they all say "No Response" with the Home app, but all work with their maker's apps. Per advice from the accessory makers, I've found that turning WiFi on my iPhone off and back on fixes the problem but only for a short period of time. This is a preposterous work-around, since when I walk into a room and want to turn on the light I don't want to waste my time going to settings and turning off and on WiFi every time. Since the manufacturer's apps always work, and the manufacturer app is using all the same hardware/router/WiFi as the Home app, the problem is clearly with Apple software/firmware. What good is HomeKit if you have to use the individual apps? Is there a real fix?