No solutions for Eve Connection problems?

Having occasional connection problems with Eve devices (energy, shutter/light switches, move, weather) I scanned multiple forums. My impression is that there is a lot of trial and error and guesswork but no convincing solutions. The Eve support also comes back with the typical support answers (updates, reboots of border routers, plug-in/off) which may help temporally but not sustainably. So it would be a great move of Eve to share more of their knowledge about 1) what are typical causes for sudden / occasional connection losses 2) what are the most effective things a user can try and in which sequence 3) what are the things Eve is working on to increase stability

This is an urgent plea for more openess as too much individual user time is wasted with tinkering.