Use plex App (Android) without sing in (Offline)

Hi,
I can’t connect to my plex server!! :frowning:
I have the Plex Server in my laptop and i have the Plex App installed in my tablet Android. Both devices (Laptop and Tablet) are on the same local network.
Usually the tablet can connect to the server without major problem UNTIL without any reason… sometimes… the app ask me the “username” and “password” to sing in in my plex account. When this happen and I don’t have internet, is IMPOSIBLE find the server on my tablet and i cant see movies.
What can I do to ensure that i can find the server and see my movies always without internet?.

Note: I don’t have plex pass. I only unlocked the plex app in my tablet.

Thankss a lot!! :smiley: