I had the same Problem here. Only to switch to a USB 2 Port have solved it.
My Mainboard is a ASrock P67 Pro3
The weird thing is that the Controller itself seams to work on USB 3, no error from Windows, say it works without a Problem but no Software recognize it. I also tried the Firmware Reset Tool as last try and even that say i should connect LP. But as soon I switched to USB 2 all works fine.
I have this Issue since the Firmware that came before the Hotfix (1.1.3+9188_ah1432) came out and it is still in the newest Firmware (1.2.0+10947_ah1675).