Mezzmo and Samsung J issues

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I have similar problem - my TV(UE48JU6472) stop seeing the MEZZMO. I bought TV 6 month ago and everything worked fine. Few weeks ago, "sources" button stopped showing the MEZZO icon.

- I can remotely send any movie from the DLNA server to my TV
- if I use MEZZO application on my PC, TV is not accepting the video format
- the same movie can be played from the USB flash disk

I cannot use permanently remoter access on the DLNA server.

Any advice?

Is there a different between the MEZZMO trial and pro version? If so, I buy pro version, but I dont known, if it will help.

I repeat, everything worked perfect a couple of months

Thank you for any advice

EDIT: same movie works fine from the mobile MEZZO application and when I used Windows MEZZO software it doesn't work (Selected file is currently not supported). Why?