That did it! I just tried the newest version on http://thehackbox.org/tasmota/
And updating 3 of my switches to this version build on the 2.3.0 core and they just worked again!
wifi experience is still a little low:
But Wifi as reported by the switches seems okay 88%-88%-90%
The 0ebec1f-sonoff does not give any disconnects!
The other ones does!
And the nice thing is that I can update them through the UI (If I can upload the bin between disconnects)
Thanks everyone that made my whole month! - Family is used to be able to use Google assistant!