My plex is unreachable

Server Version#: 1.18.2.2029
Player Version#: LG tv app version 2.1.3

My plex server is on the same network as My LG tv, but My tv says that My server is unreachable. My tv is on Wi-Fi and My plex server on cabled LAN.

Android and Windows 10 app works as they should on the same local network

is the smart tv app the same as www.plex.tv/web? because when i use plex with webbrowser or my smart tv app then it doen’t work.

when i use the windows app or android app then everything works as it should.

everything in on local network