7920 authentication failed

Unanswered Question
Aug 15th, 2008

I got Cisco Wifi Controller with 1300 Access Points working with TACACS+.

We have 7920 and 7921 wifi phones. Initiallty, everything worked fine, but today I noticed that 7920 phone do not authenticate. I looked through Controllers logs and found this:

Could not process the RSN and WARP IEs. station not using RSN (WPA2) on WLAN requiring RSN.

However, 7921 work fine.

What is the problem?

I have this problem too.
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migilles Fri, 08/15/2008 - 18:08

7920 does not support WPA2 or AES encryption.

If you want to mandate WPA2 for the 7921s, where fast roaming (CCKM) will then not be an option, then configure a separate SSID for the 7920s to use WPA(TKIP)+CCKM.

fgasimzade Sun, 08/17/2008 - 20:39

I does support WPA2, I configured it to use AKM authentication mode, now it is ok

migilles Mon, 08/25/2008 - 15:39

No that is incorrect. The 7920 does not support WPA2, but 7921 does.

Yes must use AKM on the 7920 when using authenticated key management (CCKM, WPA, WPA-PSK). For 7921, use AKM for WPA-PSK, but choose the EAP type when doing CCKM, WPA or WPA2.


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