What is in your ACL on the WLC? The redirect ACL that ISE should be sending to the WLC. If this is not correct traffic wont work.Also second the suggestions of upgrading the WLC.Is the gateway VSS or HSRP?
Cisco ISE cant do it. It was done for a single client using a 3rd party radius server. Requested why ISE cant do it and had crickets from the SEs and AMs at Cisco
@JoshPlemons Any updates on if ISE will support this or what I need to call it if I speak to the two supported AAA vendors- Nomadix and Eleven Software?Like Kevin has asked what radius attribute is the radius server matching on to identify the PSK?