I got a telefunken-TV (Model: A50U445A) and a Symology NAS DS218+
I use the built-in media server on the NAS to publish mediafiles (movies) via DLNA in my wlan.
The TV shows the NAS, it shows the folders provided by DLNA but it does not show the files.
When I copy the files onto a USB-Drive the TV can play them, no problem.
When I use the media player of the PC which is connected to the same router as the NAS and the TV (but via LAN) the files are visible and I can play them.
So, why the TV does not show the files provided by the mediaserver?