EAP: buildIdentity: configuration was not available; any suggestion?

[Pongsak Tawankanjanachot]

Hi,
   I'm now using wpa_supplicant 0.5.8 connecting with Access
Point-WPA2(Radius,CCMP). STA connects with AP successfully. But it
sometimes, shows the error message during association.
   Debug message at wpa_supplicant, it keeps showing: (I copy some part of a
long list)

EAP: EAP entering state RECEIVED
EAP: Received EAP-Request id=3 method=1 vendor=0 vendorMethod=0
EAP: EAP entering state IDENTITY
CTRL-EVENT-EAP-STARTED EAP authentication started
EAP: EAP-Request Identity data - hexdump_ascii(len=0):

*EAP: buildIdentity: configuration was not available*

EAP: EAP entering state SEND_RESPONSE
EAP: EAP entering state IDLE
RX EAPOL from 00:1a:4d:2f:87:2c
EAPOL: Received EAP-Packet frame
RX EAPOL from 00:1a:4d:2f:87:2c
EAPOL: Received EAP-Packet frame
Authentication with 00:1a:4d:2f:87:2c timed out.
wpa_driver_ralink_get_bssid
wpa_driver_ralink_get_associnfo
wpa_driver_ralink_get_associnfo: association success
wpa_driver_ralink_poll_timeout: Connected!!
wpa_driver_ralink_get_bssid
State: SCANNING -> ASSOCIATED
wpa_driver_ralink_get_bssid
Associated with 00:1a:4d:2f:87:2c
WPA: Association event - clear replay counter
EAPOL: External notification - portEnabled=0
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: SUPP_BE entering state INITIALIZE
EAP: EAP entering state DISABLED
EAPOL: External notification - portValid=0
EAPOL: External notification - portEnabled=1
EAPOL: SUPP_PAE entering state CONNECTING
EAPOL: SUPP_BE entering state IDLE
EAP: EAP entering state INITIALIZE
EAP: EAP entering state IDLE
Setting authentication timeout: 10 sec 0 usec
Cancelling scan request
EAPOL: startWhen --> 0
EAPOL: SUPP_PAE entering state CONNECTING
EAPOL: txStart
RX EAPOL from 00:1a:4d:2f:87:2c
Setting authentication timeout: 10 sec 0 usec
EAPOL: Received EAP-Packet frame
EAPOL: SUPP_PAE entering state RESTART
EAP: EAP entering state INITIALIZE
EAP: EAP entering state IDLE
EAPOL: SUPP_PAE entering state AUTHENTICATING
EAPOL: SUPP_BE entering state REQUEST
EAPOL: getSuppRsp

message *EAP: buildIdentity: configuration was not available* seems like
there is no identity configuration, but I'm sure that my wpa_supplicant.conf
is correct (it happens this error  randomly)

   Is there any suggestion? Any idea would be thankful.
   Let me know if you need any information.

Best regards,
Pongsak
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