I found a work around for the DHCP issue. It seems that the WET11 is very particular about what is used as a DHCP server. It own't pass through DHCP from my Linux box, but will from a Linksys router. So for now it seems to be working with two DHCP servers on the network, the Linux box handles statically assigned IPs based on MAC address, while the Linksys router handles dynamically assigned IPs for the Rio Receiver and other rogue devices.

Stu