Ehternet and IP are complicated.

If it doesn't magically work the first time, a lot of stuff has to be done manually.

How do you have it set up right now? Cable->USB, empeg->Ethernet?

I've never dealt with IP over USB. Is it possible that it's disabling his Ethernet card?

Try running ``ipconfig /all'' again, this time with the space, and see what the output is. Also, connect the empeg back up via serial and see what its network settings are like using the method I posted before.