The network uses TCP/IP to communicate, and I don't think that using what amounts to a null cable (USB) can use that protocol. Can you transmit files or anything else (non-bryce) between them using that USB cable? You might have to get a traditional hub or router and set up a network the traditional way rather than try to use just a USB cable. I can't imagine it working that way. I just got network rendering set up today at work, and it is definately worth your time...