@michkrom Yeah, it's weird why there are two different settings for DNS. Maybe the one in Network->Internet is what the router uses internally for things like connecting to tp-link cloud, and the one...

I have a self-hosted DNS server on address 192.168.1.20. I cannot set the router (Archer A6) to hand out that as the DNS address via DHCP. When I go to Advanced -> Network -> Internet and set the DNS...