My first thought is the authentication does not match or you have the broadcast SSID off.
Maybe the following will help.
EAP authentication methods that the BlackBerry device supports
Authentication method
Description
BlackBerry device implementation
LEAP
Ciscoฎ developed LEAP in response to the weaknesses identified in WEP. LEAP uses the IEEE 802.1x authentication framework.
LEAP is designed to significantly improve on basic WEP security by providing authentication between the enterprise Wi-Fi network device and the enterprise Wi-Fi network, per-client dynamic generation of WEP keys, and automatic WEP key updates throughout the course of a session on the enterprise Wi-Fi network device.
The BlackBerry device supports LEAP authentication based on a user name and password. The BlackBerry device uses a one-way function to encrypt passwords before sending them to the authentication server.
LEAP does not provide mutual authentication between the BlackBerry device and the enterprise Wi-Fi network. Set strong password policies on networks that use LEAP.
PEAP
PEAP is an open standard jointly developed by Microsoft Corporation, RSA Security, and Cisco Systems, Inc. PEAP allows for supplicant authentication with an authentication server by
creating an encrypted tunnel between the supplicant and the authentication server using TLS
using the TLS tunnel to send the supplicant authentication credentials to the authentication server
The BlackBerry device supports the following versions of PEAP:
PEAPv0
PEAPv1 with MS-CHAPv2 and EAP-GTC as a second-phase protocol that the BlackBerry device can use for the authentication credential exchange
A root certificate corresponding to the server certificate that the authentication server uses must exist on the BlackBerry device for PEAP authentication to complete successfully.
EAP-TLS
EAP-TLS is defined in RFC 2716. It uses a PKI to enable supplicant authentication with an authentication server by
using the TLS protocol to create an encrypted tunnel between the supplicant and the authentication server
using the TLS encrypted tunnel and a client certificate to send authentication credentials to the authentication server
The Wi-Fi enabled BlackBerry device supports EAP-TLS using certificates that meet specific requirements on both the server and the client for successful authentication.
The root certificates of the authentication server certificate and the client certificate must exist on the Wi-Fi enabled BlackBerry device for EAP-TLS authentication to complete successfully.
Smartphones, Cell Phones & Smart Phones at BlackBerry.com
BlackBerry Enterprise Solution 75
Encryption algorithms that the Wi-Fi enabled BlackBerry device supports for use with layer 2 security methods
Protocol
Description
Wi-Fi enabled BlackBerry device implementation
WEP
See Requiring protected connections to enterprise Wi-Fi networks on page 46 for a description of WEP.
The Wi-Fi enabled BlackBerry device supports the use of WEP keys.
TKIP
TKIP is
part of the IEEE 802.11i enterprise Wi-Fi network security standard
designed to address the shortcomings in WEP without requiring replacement of the existing enterprise Wi-Fi network hardware
designed to use the RC4 encryption method (based on improved WEP standards)
TKIP is designed to be more robust than WEP in the following ways:
using a key size of 128 bits (compared to 40 bits or 104 bits for WEP)
using a modified initialization vector, that is designed to significantly increase the difficulty of deriving the WEP key
generating keys dynamically for each session by changing keys automatically for each packet of transmitted data (where WEP uses a single fixed key for an entire session)
using a MIC that fails and discards transmitted packets that are captured, altered, and resent
requiring a secure method of distribution to a wireless client
The Wi-Fi enabled BlackBerry device supports the use of TKIP with
EAP-TLS
EAP-TTLS
PEAP
PSK
AES-CCMP
AES-CCMP is
part of the IEEE 802.11i enterprise Wi-Fi network security standard
designed to use AES encryption
AES-CCMP is designed to provide a robust security protocol similar to TKIP in the following ways:
using a key size of 128 bits
using a MIC that fails and discards transmitted packets that are captured, altered, and resent
requiring a secure method of distribution to a wireless client
The Wi-Fi enabled BlackBerry device supports the use of AES-CCMP with
EAP-TLS
EAP-TTLS
EAP-FAST
PEAP
PSK
Wi-Fi enabled BlackBerry device VPN solution