I had similar problems.
The symptom was that Iliad scanned and saw my network, but failed to connect.
It turns out that my my open wireless network was MAC-restricted for security reasons (so only a known set of devices could associate), and I mistakenly entered the MAC address on the back of my Iliad device. (On my Iliad, that is the Ethernet, not the wireless MAC address.)
(I found out my Iliad wireless MAC address by temporarily un-restricting my wireless network, then checking the router to see what MAC address was associating with the router, then adding that to my allowed list.)
That may not be your problem, but there is my 2c.
Edit: I just realized that this post is a year old. And my device just updated itself over its new wireless connection and updated itself and now displays the wireless MAC in software. But maybe this will still be useful to someone... 