Realm connectivity

Hope I did this properly.

My friends and I play on a realm. We all play on Xbox. Currently no one can log onto the server. I have two Xbox accounts and neither can access it, but a message always appears that either says "unable to connect to world" or "disconnected from server." This is the case for every member of the server. Prior to this, my main account could not join the server but my alternate account could. No one else had any issues, but now everyone has the same connectivity issue. I believe it is affecting version 1.2.3 (current version of better together)