I recently acquired an Oculus Rift VR headset. I bought a Dell XPS 8900 that was certified for the headset.  I can use the headset but occasionally the headset loses connection. The connection does usually return.  Running the support diagnosis app from Dell shows the VR sensor USB at 3.0 speeds but the VR headset USB port only shows USB 1.0 speed.  The devices are indeed plugged into the 3.0 ports. The headset requires 3.0 speeds according to specs.  I have switched around the various USB cables and get the same result.  I recently updated the chipset driver from Dell and get the same result.  Any suggestions?

Thanks in advance..