iMac stopped allowing DLNA functions

Hi All,

My iMac stopped allowing access to DLNA devices the other day. Was happily playing video from iMac vuze downloads to Panasonic TV when I suddenly couldn't. On the TV got access to Vuze Download folder on iMac, but after that I get a "Server connection failed" message. (note, internet access from the TV remained unaffected).

Tried updating to Yosemite, but same error message.

Tried downloading XMBC, same thing.

Got "file sharing" ticked in sharing, preferences.

Tried turning off and then on again my DSL router, no help.

Any thoughts any body?

Thanks Heaps in advance.