I have the exact same problem. ETD works fine wired, add the wireless and no lights.
The data light on the etd lights up when I play a sequence, but that's all I get.
I've hit that restore button more times than I can count, tried cross over wires, twisted, straight through, 2 different 330n's , a linksys and an actiontec. Any other ideas?
Update: so, I was looking at my router that the 330n was connecting to, and it was assigning 2 addresses to my laptop that I ran the configuration on... So.. I renamed my laptop, reconfigured the 330n, changed the name back.. Rebooted the laptop and router.. Plugged everything back in... And it worked. Yay... Now to figure out how to squeeze all this stuff in a battery box