Help getting Artnet working from Nomad Macbook via Apple USB - UTP

Anyone who could help me getting Artnet working from Nomad on Macbook pro. Sending via Apple adapter Usb to ethernet, should this work? Next to me a Grandma desk, running artnet on 2.9.100.1 and subnet 255.0.0.0 When i put this IP into system settings on the macbook, Nomad connects to this also. After start up nomad: all the moving lights + Leds come on but i have no control at all. Tried different Artnet settings in the shell also. thanks
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