20:26:00 Waiting for beacon frame (BSSID: 00:1B:57:FD:79:DD) on channel 11
20:26:01 Sending Authentication Request (Open System)
20:26:01 Authentication successful
20:26:01 Sending Association...

whats wrong in the following crack attempt my friens pls do help
airmon-ng
airmon-ng stop ath0
(VAP destroyed)
ifconfig wifi0 down
macchanger --mac 00:11:22:33:44:55 wifi0
Current MAC:...

Dear friend someone pls tell me whats wrong in my attempt to crack wpa/

pls mention wat change i have to make in the commad

[COLOR="DarkOrange"]bt ~ # airmon-ng
ath0 Atheros ...