Network devices not detecting My Book Live Duo

Anyone know why my network devices (blu ray player and AV receiver) are not detecting My Book Live Duo even though my network map shows My Book is connected to the network.

Hi, go to the my book dashboard and verify that the twonky media server is turned on, go to settings/Media. Check the link below for the steps to access the dashboard.

http://wdc.custhelp.com/app/answers/detail/a_id/5871/session/L3RpbWUvMTM1MDE1MTA1Ny9zaWQvMWpvQklEOGw%3D