Xbox One Tuner not detected on setup

I am using the supported Xbox One Hauppauge tuner on a Windows 10 machine. I have downloaded the driver and do NOT have the WinTV application installed (as I heard it could conflict with Plex). During DVR setup there is no device listed and Plex never finds the device. The device is working properly. Are there any other threads on this, or advice on how to do it manually?!