Tony Morris

Jeremy – I’m surprised you had to use a USB hub to solve your problem as USB 3.1 ports should be able to supply more current and voltage than a USB 2.0 port. It may be worth checking the laptop BIOS and or your operating system to see if these is an aggressive power saving setting enabled. I had a Samsung laptop that disabled its USB 3.0 ports on power up as part of its power management regime, the setting was not easy to spot. Maybe if its all working now its best to leave alone……