Just installed a RapidRoad in my 600 and it seems to work fine with a Mouse and a USB stick, but I am having trouble with a USB Ethernet adapter. I have set up AmiTCP to use usbasixeth.device and I have been able to log on to my NAS through ftp.
When I start AWeb it seems to crash the USB stack and I get the error 'Eth transmit failed: nak timout(10)' in Trident. When it happens, I also lose the mouse and can only fix it by setting the controller Offline and then back online.
Have anyone else gotten this kind of USB Ethernet adapter to work successfully? I am not sure if it is related to the A4000+X-Surf problem that people seem to be having which is also nak timeouts.