Cannot connect to Media Server

I have a WD ShareSpace 4tb running Twonky MediaServer. I cannot access this on my WD Live Plus. The firmwares are current on both units, and it had been working prior to the recent update on the WD Live Plus.

I can access the Twonky media server from my PC with Windows Media Player, so I do not think it’s the ShareSpace. Any suggestions are welcome!

Figured out why I couldn’t see the media server. Multicast turned off on the router. WOrks now, but unfortunately now I cannot access shared folders on the WD ShareSpace. Sigh, working on that one now.