Cisco 7920 - Unified Wireless IP Phone VoIP Administration Manual page 184

Resolving Startup and Connectivity Problems
Error Messages During Authentication
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1
9-4
If using static WEP, check the WEP key on the phone to be sure it matches the
WEP key on the access point. Reenter the WEP key on the phone to be sure it is
correct.
If open authentication is set, the phone is able to associate to an access
Note
point although the WEP keys are incorrect or mismatched.
If you see the following error messages, check these problems:
Authentication failed, No AP found
Check if CCKM and ciphers are enabled on the access point. These features
•
are supported only with release 2.0. For earlier releases, set CCKM to
"Optional" and only use WEP ciphers.
Check that the correct SSID is entered on the phone.
•
• Check that the WEP settings on the phone and the access point match.
If using LEAP, check that the correct LEAP username and password are
•
entered on phone.
LEAP authentication failed
If you are using LEAP, you might need to enter the LEAP user name on the
•
phone in the domain\username format when authenticating with a Windows
domain.
• Check that the correct LEAP username and password are entered on phone.
AP Error—Cannot support all requested capabilities
On the access point, check that CKIP/CMIC or AES are not enabled for the voice
VLAN SSID. The Cisco Wireless IP Phone 7920 does not support these features.
Chapter 9 Troubleshooting the Cisco Wireless IP Phone 7920
OL-7104-01