Youtube via https

hello

in balance 380 youtube via https doesn’t work YouTube but in my balance 310 it works

rule name: youtube
enable: box check
protocol: tcp / https
source ip/port: my LAN / any port
destination:domain name= youtube.com port 443
action: deny

or i missed something?

You may upgrade to v6.3.1 and using Web Blocking to block Youtube traffic. Please find here for more details.