SoundSwitch and Art-Net (with lumenradio Stardust transceiver)

Hi Folks, using lumenradio Stardust and Aurora. Everything works perfectly fine when using grandMA3 and sACN. However, when trying SoundSwitch and Art-Net, nothing works. In SoundSwitch I can enable Art-Net. I immediately see the Stardust as an Art-Net device in the SoundSwitch Software.

However, in Stardusts WebUI, I have to set Net, Sub Net and Universe. For Universe, I enter 1, as this is the DMX universe I’d like to transmit. However, what do I have to enter for Net and Sub Net? The SoundSwitch documentation doesn’t give any hints whatsoever.

Whenever I enter any values for Net and Sub Net and then click “Link”, Stardust reverts back to sACN for the particular Output.

Any help is greatly appreciated.