wpa_supplicant can connect, but reconnect immediately

[J. Bakshi]

Hello list,

I want wpa_supplicant scans the available AP and based on priority connects a particular AP.

watch "wpa_cli status"

shows that wpa_supplicant can connect the AP but immediately it disconnects. It happens again and again after a regular interval. Why wpa-supplicant lost the AP even after make the association ? Here is my wpa_supplicant related configuration

````````````````````````````````
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev

ap_scan=1

#office
network={
        ssid="infoservices"
        psk=026d1e67ce2899210d81f4af99cdd643d29932cfff6c507bb0d19eb90c14a0c4
        key_mgmt=WPA-PSK
        #"RSN" = WPA(2)
        proto=RSN
        #encryption
        #"CCMP" = AES cipher as part of WPA(2) standard.
        #"TKIP" = TKIP cipher as part of WPA(1) standard.
        pairwise=CCMP
        group=CCMP
        scan_ssid=1 #scan hidden SSID
        priority=10
}

# Any open access point
network={
      scan_ssid="any"
      key_mgmt=NONE
      priority=1
}

Any clue please ? This is debian squeeze , wpa_supplicant version is   0.6.10-2

Thanks