Gentlemen,
I heard from several testers that they solved their connection problems as soon as they connected the dongle to a real USB 2.0 port and not a 1.1.
This wheel does require a USB 2.0 port so please check if this solves your problem. Beside that we recommend using the direct ports on the Motherboard or a USB hub with external power supply to make sure that the dongle has enough power.
If this does not help, we send new RF dongles.
Thomas