Hi,

I have some issue with ISE and Cisco WLC:

My equipment:
- 1 SSID with 802.1x and radius points to ISE
- ISE 1.4 using AD as identity source.

Symptom:
- When clients connect to this SSID, they use their AD account to connect. But sometimes, even they type TRUE account, they can't connect and ISE show that:

Event    5440 Endpoint abandoned EAP session and started new

Failure Reason    5440 Endpoint abandoned EAP session and started new

Resolution    Verify known NAD or supplicant issues and published bugs. Verify NAD and supplicant configuration.

Root cause    Endpoint started new authentication while previous is still in progress. Most probable that supplicant on that endpoint stopped conducting the previous authentication and started the new one. Closing the previous authentication.

I don't know what the problem here. Could you help me please ?

Thanks

Hi MC,

Thanks for your reply.

- System still working
- About 10-20% user affected
- Let's see: clients first time get succeed, then they went home, then came back and fail. When get fail (ISE shows Reason 5440) , the device automatic disassociated and reconnect, and get succeed again.
-I've tried both restart service and reboot, but the issue still here.

Do you have any idea?

Thanks

Hi MC,

This happen on any OS, any device (Windows7/8, Iphone, Android...)

This drive me crazy

Thanks