I do not have a connection problem between my Android phone and the Deco XE75. I am not getting dropped.

The problem is that when I keep the Deco app open for a few minutes (or hours) and try to make changes (most often blocking or unblocking a device), the app has "forgotten" the correct state of the target device. If I'm trying to unblock a device from the network (Smart Devices --> Network icon --> Online clients), I select the device, select "Unblock", and the app either shows an endless spinner or (worse) shows an updated/unblocked device but doesn't actually unblock it.

The workaround in my example is to kill the app, restart the Deco app, and then perform the unblock action. 

Details:
 
Auto-update is enabled, as is the daily reboot.

Phone: Samsung Galaxy S20 Ultra

Use case: Managing a kid's internet access for three devices (a school laptop, an iPad, and a gaming PC). I have used Profiles for this purpose, but this feature is difficult to use when I'm restricting individual machines frequently (not all devices unblocked at once). I also tried using schedules, but changes were needed outside of the schedule too often. It is easier, and fewer clicks, to block and unblock each device.