Sony BDP-s570 and WD world book Streaming issues

I bought the 3TB MyBook live network drive and connected it. I have two Sony bluray players on my network BDP-BX58 (Walmarts version of the BDP-S580) and a BDP-S570. The BDP-BX58 works fine and will find my Twonky Media and stream my movies but the BDP-S570 always says there are no files. any answers anyone?? Thanks. 

I looked through the manual for the BDP-S570 and could not find any references to it supporting netwokr playback through SMB or DLNA.