Radius authentication with a Cisco ACS

Radius authentication with a Cisco ACS

I recently setup device expert. I am running Version : 5.2.1
Build Number : 5210. I have most options running fine. I am having trouble getting authentication against a Cisco ACS. When I check the logs on the Cisco ACS I don't see any attempts by device expert to authenticate a user. Any help with this would be great. Should it work with a Cisco ACS? Is there any additional settings besides the radius tab in the admin section?
thank you.

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