Public Shares can't be seen by media devices (Mac can see them)

I’m having a horrible problem with my white 2TB MyBook Live. My WD HD Live and Blu-Ray player can no longer see the Public Share.  It instead has been replaced with a share server that say Twonky Media and has no content. I can see the public shares in my iMacs Finder Window of shared drives. M WD HD Live can see other servers on the network s it’s not the router. Can someone help? Planning on watching some movies tonight. It worked fine this morning and 

Sorry my drive is a 2TB My Book World, not a LIve