Why can't I access my server?

I’ve been using Plex for over two months, with my laptop as the media server and streaming to both windows and android clients without problems. The thing is, today I launched the android app and said my server was unavailable. I went to check my laptop (server) and it had the following message: “The server ******** is unavailable”. To the left side, it said “The selected server is unreachable. Make sure it’s running, double check your network, and try again”. I haven’t changed anything in my setup, the app keeps refreshing but it just doesn’t work. I closed the apps checked my internet connection, reset the password, etc. Can you help me? Thanks

Check this help article - https://support.plex.tv/hc/en-us/articles/200931138 - especially the part about manual port forwarding.

Thanks for the answer. I followed the steps, but once I tried to get into server settings, it gave the message “server settings are unavailable”

same problem here — I get the green light for a second then back to this … no remote connections working even with firewalls turned completely off …