I purchased a refurbished Literati and ran into a problem with it connecting to my WiFi network. I had been using WPA as the security method and it wouldn't connect. What I found solved the problem was changing to WPA2. Once I did this the WiFi connected without a problem.
I post this as a help to people who, like me, maybe enticed by the low cost of one of these units. (I paid $35 at Micro Center.)