It would probably be good to start a new thread for this issue, but the immediate question that springs to mind is "what all are you plugging into the hub?" There is a known usb issue that is being worked on, involving mixing speeds of USB devices (such as a low speed usb 1.1 keyboard or mouse and ...

Hi, I study informatics and engineering in Hungary, on the best technical university of Hungary. I've got two rpi, the first limited edition's model B, and a revision 2 model B with half GB of memory. First, I tried with a low-cost keyboard, a noname mouse, an HDMI fullHD LCD, a power supplied USB h...