NAC assigns improper RADIUS IP Server Address to EWC/Indentify controller upon an enforce
IP address shows a negative number such as -72.-62.1.1 Controller shows Failed to get radius profile for subnet No radius server available for WLAN
EWC/Identifi with 10.x.x.x firmware NAC version 126.96.36.199
Under investigation and to be fixed in a future release.
In NAC Manager, Select NAC, Select Switches Tab ->Select Switch Change Network Access to Manual Radius Configuration. This will require you to set the radius server as the NAC on the EWC. It will no longer be pushed from NAC
This is caused by the VNS authentication not being set for Strict mode. Enable the strict mode option on the wirelesss controller (VNS --> Authentication page) to allow nac to write the correct radius server IP to the wireless controller