@nikscha I could not make it work either using RRF3.
I ended up modifying another integration to make it work with RRF 3.
You can find it on my repo :
https://github.com/repier37/hass-Duet3D
Basically I just added authentication to the integration I forked to be able to retrieve data.
It is still using the rr_status command that is planned to be removed in RRF3.5 if I recall correctly, but it should work with earlier version. It should not be too hard to move to rr_model as it should only be changing json parsing.
