the error log is as follows, it seems to be related to WPA_DRIVER_FLAGS_ACS_OFFLOAD and WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY , and CONFIG_DRIVER_NL80211_QCA flags but in my case, my wifi device is not QCA's wifi chip! any advice to cope with the issue? ... 06-06 09:54:11.114 5106 5106 E hostapd : Hardware does not support configured mode 06-06 09:54:11.114 5106 5106 I hostapd : wlan0: IEEE 802.11 Hardware does not support configured mode (4) (hw_mode in hostapd.conf) 06-06 09:54:11.114 5106 5106 W hostapd : wlan0: IEEE 802.11 Hardware does not support configured mode (4) (hw_mode in hostapd.conf) 06-06 09:54:11.114 5106 5106 E hostapd : Could not select hw_mode and channel. (-2) ... thanks! _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap