We had a wireless security implementation at a customer site which consisted of the following components:
- Cisco Wireless LAN Controllers
- Cisco Prime Infrastructure
- Cisco Identity Service Engine
The setup included a wireless lan for guest access by using the Cisco ISE guest portal functionality.
We
started by configuring the WLC's and ISE environment and having done
that everything worked as a charm. A couple of days later we we were not
able to connect to the wireless network.
The error reported in the ISE Authentications overview was:
Dynamic Authorization Failed : 11213 No responds received from Network Access Device