I haven’t yet, I will surely do. Somehow I am happy that I am not the only one with the same issue. In the meantime I think I will create an automation that restarts the app if exceeds the limit as per your linked post. Thanks for that
Can you also tell us more about your router/WiFi setup? I already had my current setup running on the Homey 2019 and this went smoothly after some changes (see above). Intuitively, I think you should look for it in the router settings/connection first.
-Is Homey primarily connected to the same AP as the hue bridge?
considered installing Sysinternals on Homey? You may be able to find out whether WiFi is down for Homey at the same times.
-are there any logs on the router that can tell you something about the WiFi connection?
-Does the hue bridge have a fixed IP address?
Philips Hue is connected directly to the UDM via GbE. I didn’t provide it with a static address, but it has never changed (because of the DHCP lease I guess.)
Homey is connected to an Access Point which in turn is connected via a GbE backbone to the UDM. The signal is very strong and there are no signs of disconnection on the UDM control panel.
What it seems to have solved the problem, is to lock Homey to the closest Access Point (literally next to it), while before it was free to roam through the available ones. I still get an interesting Mem usage graph of the Hue App at the moment, but as long as it doesn’t stop the app, I am fine with it.
I will install Sysinternals to get more insights. Thanks everyone for the recommendation and help!