Why is it necessary to deactivate the filter fasttrack connection?

The mangle rules and queue tree will not act accordingly if you enable fasttrack connections in /ip firewall filter (default config).

My network only have two devices connect to one HAP AC2 through 2 RJ45 cable.(one is an openwrt router, and other is windows 7 computer) What is the most effecient way to make windows 7 computer the higher priority than the other? Maybe something like mac/ether port based QoS can be easily set up? ...

@bharrisau, @pcunite and to all experts out there

Is it recommended to use 2 QOS servers, 1 is for the 2020 QOS-Optimized server (as main bandwidth management) and the other one is for the microCAKE and this will be running inside PPPoE/ Hotspot server?