Dongle not recognized

Hi,

i'm booting by CD with the newest Upgrade. The 'IsoLinux' comes up with menu to choose how to upgrade (i choose 2).

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Then their are four lines with:

usb1-4: device descriptor read/64, error -110

then:

Device not accepting Address 4

and then:

System corrupted

No USB flash module has been found.
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Open-e normaly boots with no problems. Mainboard is Supermicro Dual X7DBE I5000P/8

Have you tried upgrading from Gui

that's possible, i know.
But i want espacially this way, because i want to reset the configuration to factory default. Support says that this is the only way to do this.

Does your system boot with just the dongle?
Some dongles have a switch to lock the dongle is this the case?
Have you tried the dongle on another machine ?

Got exactly the same problem with exactly the same MB...