I’ve been using my UD-3900 for about a year without issue with my Lenovo laptop and my Dell work laptop. I recently got an HP 580-023w and found when I connected it to the USB 3.0 ports that my USB devices attached to the docking station worked fine, but the monitor, audio, and ethernet did not work. With Device Manager pulled up, I could see it cycle those portions of the docking station; they’d popup, then quickly disappear. This happened when I tried connecting the docking station with each of the PC’s USB 3.0 ports. I tried reinstalling Windows (just Windows, not a fresh install), using this article, but the problem persisted. I finally tried switching to a USB 2.0 port and everything works as expected.