Make Sure All Clients Use RouterOS Mikrotik Dns
/ip dns
set allow-remote-requests=yes cache-max-ttl=3h cache-size=10240KiB servers=8.8.8.8,8.8.4.4,208.67.222.222,208.67.220.220,1.1.1.1,9.9.9.9
/ip firewall nat
add action=redirect chain=dstnat dst-port=53 protocol=udp to-ports=53
add action=redirect chain=dstnat dst-port=53 protocol=tcp to-ports=53