Going by comments on various discussion groups, most (if not all) internet radios seem to run a skinny version of Linux. You could try plugging on of the USB / LAN adaptors which claims to be Linux compatible into the USB socket and do a reset. Why a reset? I suspect they do minimal HW scanning at power up to save time and it may not be detected otherwise.
Having said that, if you have decent Wi-fi coverage in your house etc, the bandwidth isn?t high. I run a mixed wired / Wi-fi network and try to put as many things on wired connections as possible but I still don?t use the (provided) network connectors on our iStream 94s.