I thought some iwlwifi cards now support AC wifi. Doesn't it? I still only can reach at max 20-25mbps. Not more. And I know this is capable because I am getting 300mbps on Debian 12.
root@freebsd-dell-laptop:/home/mahsun # pciconf -lv | grep -i wireless
device = 'Wireless 3165'
root@freebsd-dell-laptop:/home/mahsun # pciconf -lv | grep -i wireless
device = 'Wireless 3165'

