Hello!
You mentioned that the Zoom Q2N webcam worked on your laptop. Is that a Windows or a Mac laptop?
You will want to check that your Zoom Q2N can be used by the built-in Windows "Camera" app. If the Windows Camera app can't use the Zoom Q2N, then likely Character won't be able to use it either.
Also, it is possible the Q2N requires a high-speed USB connection. Make sure you are using a USB 3.0 port on your PC if it is required by the camera.
Best Regards,
-G.