Here's my minimal config: interface=wlan0 driver=bsd ssid=CACHEBOY_11N_1 wpa=3 wpa_key_mgmt=WPA-PSK wpa_passphrase=Sysinit891234 wpa_pairwise=CCMP ctrl_interface=/var/run/hostapd This is known to work. I think you're missing driver=bsd ? adrian