@flyjar under SiteSettings/WiredNetworks/LAN where you configure your LAN's. For a specific LAN, there is a DNS Server option Auto or Manual. If you set it to Manual you can specific a primary and a...

An easy approach is to use DNS. There are several DNS servers to choose from. You just set the DNS server for your LAN. For my kids VLAN i use Cloudflare 1.1.1.3 which will block malware and adult...