Did You try to connect to that SSID with any other device (like a Laptop). If this works, then the setup on the WLC is basically working.
Otherwise check if the 802.11a-network itself is up (under wireless->802.11a/n->Network) and if the WLAN is enabled (under WLANs->[yourssid]->Status).
We use some 7920s, too. We deployed an ACS-based authentication (LEAP) and disabled the WPA2-Policy, so only WPA (TKIP) is allowed. This was needed for the Nokia-DualBand-Mobiles. Maybe this is the point with Your 7920s, too. Try disabling WPA2 and check if it works.
Yes the 7920 doesn't support WPA2(AES), but should still work as long as you have WPA(TKIP) enabled and the pre-shared key and ssid match. Yes 7920 has to be set to AKM mode to use WPA-PSK. Will want to ensure you have the 3.0(2) code loaded on the 7920 phones. As long as you are using channels 1,6,11, shouldn't matter which 7920 model you have either. WPA-PSK support was introducd in version 2.0.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...