MAC not accepting dns server settings from dhcp
I have a dhcp binding for my MAC computer that way it always gets the same address from dhcp. However, I recently made changes on the router so the MAC gets leased a different ip address along with specific dns options. Yet, my MAC keeps using the same old binding and will not take the new dns server options. I've spent hours trying to fix this all to no avail. I removed the static binding so the MAC gets a random ip like every other client in the network but it still has the same dns. Also tried to remove dns options from the router all together; makes no difference. I ran the following command on Mojave but no dice:
$ sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil -flushcache
$sudo killall -HUP mDNSResponder; sleep 2;
When the computer connects to a different/new network, it always accepts the dns server address from the network; however, for some reason it is stuck with the old dns whenever I connect to home wifi.
I have also restarted the computer.
Thoughts anyone?