How to I find tuner device address?

I have a WinTV-dualHD tuner. It installed fine the first time, but I had to re-install windows and now the Plex dvr setup doesn’t see it.
It has a place to enter the device address but where do I find that?

The WinTV-dualHD tuner is a USB device. It doesn’t have an associated IP address. Only the HDHomerun devices from Silicondust are network devices.

Look in the Device Manager and see if there are any unknown (a yellow warning symbol) devices. I would assume there is some type of driver package that needs to be installed.