Please do the following
1. In the console, click Clients.
2. Under View Clients, select the group that contains the client that you want to enable as an unmanaged detector.
3. On the Clients tab, right-click the client that you want to enable as an unmanaged detector, and then click Enable as Unmanaged Detector.
4. To specify one or more devices to exclude from detection by the unmanaged detector, click Configure Unmanaged Detector.
5. In the Unmanaged Detector Exceptions for client name dialog box, click Add.
6. In the Add Unmanaged Detector Exception dialog box, click one of the following options:
◦ Exclude detection of an IP address range, and then enter the IP address range for several devices.
◦ Exclude detection of a MAC address, and then enter the device's MAC address.
7.
8. Click OK.
9. Click OK.
To display the list of unauthorized devices that the client detects
1. In the console, click Home.
2. On the Home page, in the Security Status section, click More Details.
3. In the Security Status Details dialog box, scroll to the Unknown Device Failures table.
4. Close the dialog box.
Regards
Please mark as a solution if it works