3.0.0.4.372.31 (Merlin build) DNS WINS Server Settings do not update

3.0.0.4.372.31 (Merlin build) with ASUS RT-AC66U
I put in the DNS For OPEN DNS: DNS Server 208.67.222.222 and
WINS Server 208.67.220.220 in the LAN DHCP Server tab then hit apply and it does not update. Is there another companion setting that I might be missing.

Thanks
Don