Cannot connect to content server



I had Plex up and running. I can play my movies from my iPhone (not through the app but via I can see all the movies I have downloaded on my Samsung TV's but I always received the same error message - cannot connect to content server.

Remote server is working
I have the latest version on my server

What am I doing wrong?

Thanks in advance


Have you seen this thread????


I followed all the different possibilities and I still receive the same error message.

PMS Version No w I am having trouble updating the server