wpa supplicant repeats associating aps

[wang baisheng]

hi,
????????After I connect to an ap using wpa supplicant successfully, then I 
power off 
the ap, then I power on, wpa supplicant trys to connect the
ap again, after associates successfully, it repeats associating, and 
complaints "Authentication with 00:00:00:00:00:00 timed out", the following 
is the output.

......
Associated with 00:13:46:40:36:fc
CTRL-EVENT-CONNECTED - Connection to 00:13:46:40:36:fc completed (reauth)
Trying to associate with 00:13:46:40:36:fc (SSID='Wireless002' freq=0 MHz)
Authentication with 00:00:00:00:00:00 timed out.
Trying to associate with 00:13:46:40:36:fc (SSID='Wireless002' freq=0 MHz)
Authentication with 00:00:00:00:00:00 timed out.
Trying to associate with 00:13:46:40:36:fc (SSID='Wireless002' freq=0 MHz)
Authentication with 00:00:00:00:00:00 timed out.
Trying to associate with 00:13:46:40:36:fc (SSID='Wireless002' freq=0 MHz)
Authentication with 00:00:00:00:00:00 timed out.
Trying to associate with 00:13:46:40:36:fc (SSID='Wireless002' freq=0 MHz)
.....

????????Any ideas ?
????????BRs,
????????Baisheng