I don't know if this will help, but some of the USB devices that I repair will change their USB identity or disconnect during booting or doing firmware upgrades.? That may be screwing up the NVX or the NVX is too slow to do the handshake when the computer boots.? You might try putting a USB hub between the computer and the NVX to maintain at least some type of connection to the NVX while the computer boots.? Or you might try using a 3rd party USB/Ethernet adapter instead and see if the works.
