Awesome, it was not the dipswitches but the resetbutton you mentioned. All works now 🙂 but a strange “error”as i didnt change anything except for pushing the DHCP button on the mixer.
Thanks for your answer, i will try and connect a laptop directly to the mixer and see what happens. To me it seems like the reset switch is a dipswitch inside the mixrack (cdm32) but maybe i am mistaken?