EAP-FAST failure in v3.0.12

[STE SQE]

Hi,

I'm new to RADIUS servers and I'm trying to enable EAP-FAST. Is there a
documentation I can use to enable it? I'm using version 3.0.12.

Anyway, this is what I've done.

EAP file edits:
tls-config tls-common {
cipher_list = "ALL:!EXPORT:!eNULL:!SSLv2"
disable_tlsv1_2 = yes
}
fast {
tls = tls-common
pac_lifetime = 604800
authority_identity = "1234"
pac_opaque_key = "0123456789abcdef0123456789ABCDEF"
virtual_server = inner-tunnel
}

I don't know where to look at in the debug output but shown below is part
of it.

(9) eap_fast: Got tunneled Access-Reject
(9) eap_fast: Reject
(9) eap: ERROR: Failed continuing EAP FAST (43) session.  EAP sub-module
failed
(9) eap: Sending EAP Failure (code 4) ID 12 length 4
(9) eap: Failed in EAP select
(9)     [eap] = invalid
(9)   } # authenticate = invalid
(9) Failed to authenticate the user
(9) Using Post-Auth-Type Reject

Are there other files I need to configure before running the RADIUS server?
Please tell me what part of the debug output is needed to help with
investigation.

Kindly help me with the configuration.

Best Regards,
RT