Hi Guys thanks for replying.
I couldnt recall what show commands exactly i applied but i was able to get info from AP side that it already broadcast at 5GHz (i turned off the 2.4) on 80MHz VHT. But when i check on the associated clients, mine only works at AN ( only 11a HT i supposed). I config the channel manually at 149E.
I dont have many ac devices to be tested but from some forums there are some people able to get 400++ Mbps with M7 just like mine so i'm sure it must be at least has 3 spatial streams.
Wonder if it just an OS bugs. Anyone able to get decent 11ac data rates on IAP-225? Please let me know which firmware version you are using.