What's your computer's ip address and where is it getting it from? Are you running dhcp on your router? If you are running dhcp on your router and the receiver is plugged into your router properly unplug the power to the receiver and plug it back in there is a green light on the back of the receiver that should stay lit and a yellow light that will flash with activity.

I wouldn't worry about the rio software until you get your dhcp issues resolved.