I have a server and shared it with friend, can they run the xbox 360 plex app and connect to their account and see my server?
yes, if you have invited them to share your server and they have accepted the invite. ( you should double check that you are sharing the libraries that you want to share)
I found out that xbox 360 doesn’t support secure connections and I am using a cloud server so that’s why its not working. Thanks though.