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NAC assigns improper RADIUS IP Server Address to EWC/Indentify controller upon an enforce

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TitleNAC assigns improper RADIUS IP Server Address to EWC/Indentify controller upon an enforce
Symptoms
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

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Environment
EWC/Identifi with 10.x.x.x firmware
NAC version 6.3.0.174
 
Cause
Under investigation and to be fixed in a future release. 
Resolution
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

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Enforce the NAC appliance after this to save settings. For more information Click this-> How to Enforce a NAC appliance or appliances.
Additional notes
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

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