DLNA Streaming Help

ok guys, first post. I have a Blackberry Z10 that is DLNA certified. Now I am trying to stream my music to the WDTV Live. If I am hardwired from my Netgear 3700 to the WDTV my Blackberry picks it up fine and I select “Play On” and I can stream it perfectly. Now if I disconnect the ethernet and try this same procedure over wifi the Z10 wont see the WDTV Live. The WDTV is connected to the same network and everything. Any help? Thanks

Check if they have the same IP range, also check if they are part of the same workgroup.