BCM4360 802.11n not working?
 

I have the ASUS PCE-AC68 wifi card and i'm using the the broadcom-wl driver (version 6.30.223.248). It works ok with 802.11abg. The hardware supports 802.11a/b/g/n/ac and the driver supports 802.11abgn but for some reason if i run iwconfig i get only 802.11abg. Also i've benchmarked that the 54Mbps is my max speed. Should I manualy enable the n mode somehow?
I've read that someone has got it working with the exact same chip (device id: 43a0) but it's not working for me.

I'm using arch.
Thanks in advance!