I'd exclude that. It does not happen with any other device and I already did some intensive troubleshooting to find out I was using an insufficient power source for the USB. This one time the issue was the whole M/B USB went down for a second (so every USB peripheral got disconnected and reconnected). Every other one came back as available in DCS but the Rhino. So to my mind that says two things
1) problems with the USB subsystem in the m/b (drivers, chipset dying, w/e) BUT
2) notwithstanding that the Rhino doesn't seem to be able to come back alive (in DCS, because the system sees it alright) from a disconnect. So despite having a potential USB chain problem (chipset, drivers, cable, hub, power source you name it) the Rhino still refuses to resuscitate in DCS when it "plugs back in" eventually.