Roon not recognizing my Nad D3045

[cary_vokes]

Windows 10

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)
no network

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

Nad D3045 amp via usb

Description Of Issue
Roon doesn’t recognize or can’t find my amp. I had to name it myself and apply my own settings. Roon seems to offer a range of setting but which ones are correct?

[BlackJack]

Second thread for the same question:

Roon with NAD D3045 amp

Core Machine (Operating system/System info/Roon build number) Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet) Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.) NAD D3045 amp (DAC supports 24/384 kHz and DSD256), USB connection. Description Of Issue What setting are best?

Audio Setup Basics