Oke i discovered that normally you’ll have to run a setup from the Horizon menu so you can choose whether or not it will hand out ip addresses and funcions as a modem and that i probably have a returned version that had not been reset the right way.
Ziggo has several instructions on their website that are not correct…
Anyhow, it’s a very simple setup, after that you can also login with a browser and the ip a address to turn off wifi functionality. (less wifi band pollution)
Thanks for the replies guys!