Serviio Problems with Sony SMP N-100

Hi,
I'm using an iMac with Serviio 6.0.1 to stream to a Sony SMP N-100 media player.
I had all set up and was able to stream fotos and content from iTunes onto the SMP.
From a day to another the server is no longer access able from the media player although it is shown in the console as running o the iMac.

Even if the Sony sees the server it states that there are no playable files in the folders. Folders are shared on the Mac and in itunes.

Any idea?

Thanks in advance

[Illico]

Do you fix IP address of your media player?

On serviio console, clean/remove all device from the list, save then restart serviio services.
Check that proper "Sony BDP" profile is selected for your media player.

Tried both. Fixed and blank IP. Makes no difference. Profile is selected as Sony SMP N-100. Still the player is not seeing the serviio as running.
How do you restart serviio? Just by quitting? It is a bit strange to start and quit as it has no real interface on a Mac.

Anything else that could be tested to get that thing running again?

[moltra]

Did you update or install any new anit-virus or firewall programs?

No firewall or anti virus installed