Apple Watch Series 3 - No Home Found

Hi there,

since some days my Apple Watch Series 3 (WiFi only) has problem with my HomeKit Devices. In particular, when I start the Home App I see this error message : "No Home Found".

I already tried to reboot the Apple Watch and the iPhone and the problem persists also after having installed the latest iOS (11.4) and WatchOS (4.3.1) Update published by Apple on yesterday: of course everything is OK with the iPhone and the iPad.

Is there anything I can try except to reset the device? I would love to avoid it because it takes so long ...

Thanks in advance!