I had a WD external portable hard drive connected to my dell xps 13 laptop and was just using it fine. I disconnected the usb cable from my usb hub and reconnected it and now my external drive does not connect. I have other usb devices connected to my usb hub and they all are working fine. I don't see any loose cables associated with my portable drive. What could be the problem? Btw, I am using win 10.