WD TV Live & WD My Book Live Duo Set Up Issues... please help a novice!

I have a My Book Live Duo (4TB) NAS connected via ethernet to my wireless router and a WD TV Live HD Streaming Media Player connected wirelessly… whilst I can see / view / play media on the NAS by navigating directly I want to use the Media Library function and for the TV Live to scan etc and so I can see the media contents metadata properly etc.

What am I doing wrong?

Can someone please answer this. I have the same problem? The only way I can make it so that the info is all there is if I connect the hard drive directly to the wd box. Is there a way to do it wireless connection?