I tried to connect and got the same error messages. I tried many different
configuration file options and got it working.
I can no longer reproduce what happened the first time, but here is what I
have learned. If your desktop is running, you need to kill nm-applet. You
also need to kill all wpa_supplicant processes.
I can now connect with only SSID and psk in the configuration file.
I still get the errors.
sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
Trying to associate with MAC_ADDRESS (SSID='MY_SSID' freq=2467 MHz)
Associated with MAC_ADDRESS
WPA: Key negotiation completed with MAC_ADDRESS [PTK=CCMP GTK=TKIP]
CTRL-EVENT-CONNECTED - Connection to MAC_ADDRESS completed (auth) [id=0
id_str=]
