Problems with Plex App on a Samsung TV

I have a problem with my Plex App on my Samsung TV. Sometimes when I am watching something. I get a “network error”, after that the plex app can’t detect/connect my Plex Media Server until I restart the server. Every other Plex App works perfectly, on linux/mac/win/android and ios, but the Samsung TV one doesn’t. It was working perfectly well until the last update on the server

Logs please.