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.
IoT AP configuration commands take effect only for the AirEngine 5760-51, AirEngine 6760-X1, AirEngine 6760-X1E, AirEngine 8760-X1-PRO, AP2050DN, AP2050DN-E, AP2050DN-S, AP2051DN, AP2051DN-E, AP2051DN-S, AP4030TN, AP4050DN-E, AP4051DN, AP4051DN-S, AP4051TN, AP4151DN, AP5050DN-S, AP6050DN, AP6052DN, AP6150DN, AP7050DE, AP7050DN-E, AP7052DE, AP7052DN, WA375DD-CE, AP7060DN, AirEngine 5760-10, AP7152DN, R250D-E, and R251D-E.