Thank you! I have set the vlan tag on the modem. I have set the DNS on the router. I can't set the DNS on the modem. I see in the logs: You have delegated ipv6-prefixes but haven't assigned them to any interface. Did you forget to set option ip6assign on your LAN-interfaces? Well... Maybe?! 😂 I have seen this error in the logs before but can't find information on how to do it. Are you familiar with this?