Client DNS Settings on Tleus Fibre Router (Arcadyan?)

[wireless]

Hi,
I just had fibre installed and received a new white, round router which is obviously a rebranded piece of hardware (possibly from Arcadyan.)
I'm using a private DNS server on my local LAN, but I can't seem to get the built-in DHCP server to hand out the address of my private DNS server (192.168.1.250). I went to Network/LAN, and under "IP Address Pool" there is a setting for DNS server address.
However, clients are definitely still using the router itself (192.168.1.254) as the one and only DNS server. Not even a backup server address is handed to my clients, only the router address.
If I could find some docs on the router I might be able to figure it out, but there is not even a model number, just the Telus branding.
Any ideas? Thanks in advance...


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