Dongle stops working after approx. 12-24h ?

[SvenJachalke]

Hi,
my question is, if someone has the similar problem as I have: The dongle stops working after around 12 to 24h. To be more explicit: The web server etc. is still ok, I can access via web browser, but controlling the covers does not work any more (pressing the button has simple no effect). After some time, also the device disappears from HA. After pressing the reset button every thing works fine again ... what can I do here?
(Maybe you need some more information from me?)

Thanks in advance!