Hello OldOx
Then you have to do the configuration manually. It requires DHCP option 60 and VLAN10 for the fiber.
[https://www.swisscom.ch/de/privatkunden/hilfe/geraet/internet-router/strangrouter.html](https://www.swisscom.ch/de/privatkunden/hilfe/geraet/internet-router/ foreign router.html)
“In the router configuration menu, DHCP option 60 must be configurable for the WAN interface and set to 100008,0001. In addition, the VLAN ID must be set to VLAN ID 10.”
Greeting
StefanoC