Cannot host a world for other players.

So, I get on my world one day and get ready for a live stream when I hear over my headset during the party whilst getting ready to broadcast "I'm unable to connect to the world" from most of my party.  My NAT is open, and I have no connection issues, says XBox One's OS settings.  Did ALL the troubleshooting, uninstalling, reinstalling, cache clearing, restarting console troubleshooting steps, and it is still not working.  I really cannot afford a realms subscription to do my streaming with and I cannot lose this world to the abyss just because something is screwy.  I HAVE A STREAM SERIES TO LAUNCH AND MY STREAMING CAREER IS POSSIBLY IN JEOPARDY!  PLEASE HELP ME!