I'm still experimenting on the configuration atm. Now I connect back the unifi router to one of the ether port of mikrotik so that I can still provide stable WiFi connection while experimenting with the settings.

Do anyone knows how to set priority/queue for the interface? Basically I have 2 interfaces provides internet to clients which are ether-4(connected to unifi wifi router) & wlan1 and I want wlan1 to have a higher priority than ether-4 when full bandwith is used. I searched online and can't seem to find a correct answer for the configuration I'm looking for.

yes , i do some site survey include the ship steakhouse also using mikrotik to do which provide by y5zone company . kindly advise how to do some configuration like this to get through?