Can't connect to plex media server on Roku

Since yesterday I haven’t been able to connect to my plex server on my Roku TV. No issues finding it on my laptop (where the server is installed) but from the Roku (and my android devices for that matter) I only have access to the Plex Cloud. It keeps saying “Server is not accessible (unreachable)”. I have tried signing out and signing in on both the app and the server. I have tried uninstalling the app and reinstalling it. I have checked to see if its a firewall issue. I have no clue how to fix this and I don’t know what has changed between a couple days ago when it was working fine and now. Please help.