i use alfa
1.my ap use 64bit ASCII wep key :weiqi
i input
"iwconfig wlan1 key s:weiqi"
but it output
"Error for wireless request "Set Encode" (8B2A) :

SET failed on device wlan1 ; Operation not supported.
"
2.i close key and i input
iwconfig wlan1 key off
input
/sbin/udhcpc -n -q -i wlan1
but it output
"sending discover..."
"sending discover..."
"sending discover..."
lease failed:
no lease,failing

3.can i connect use wpa-prs key ap
Thanks in advance