I tried to set my iPad 4 (black) as the home hub in settings and so I did.
iPad acts like a home hub but I still can not control the home on my iPhone when I'm not connected to the wifi to which the smart devices are connected.
Both devices have the same Apple ID.
I can set up scenes and automations on the iPad but not on the iPhone.
I do not know what to do.
Thank you for answer
iPad (4th gen) Wi-Fi
A Home Hub must be continuously connected to the WiFi network upon which your other devices are connected.
Whilst it is possible to configure an iPad to act as a Home Hub, a better choice for this function might be to use either an AppleTV or an Apple HomePod - these devices being continuously connected and powered.
Set up your HomePod, HomePod mini, Apple TV, or iPad as a home hub - Apple Support
A Home Hub must be continuously connected to the WiFi network upon which your other devices are connected.
Whilst it is possible to configure an iPad to act as a Home Hub, a better choice for this function might be to use either an AppleTV or an Apple HomePod - these devices being continuously connected and powered.
Set up your HomePod, HomePod mini, Apple TV, or iPad as a home hub - Apple Support
The iPad is connected to the network and powered all day.
Do I understand correctly that it is impossible to fix?
iPad as home hub does not work
