WLAN-AC commands are supported only by the following models: S5720-HI, S5730-HI, S6720-HI, S5731-H, S5731S-H, S5732-H, S6730S-H and S6730-H.
The AP3010DN-AGN, AP5010DN-AGN, AP5010SN-GN, and AP6310SN-GN do not support the high-density function.