Minecraft Windows 10 Edition - I can't join realms but I can join multiplayer games

So, I'm trying to play minecraft with my friends. I can join a world if one of them hosts it but I can't join my friend's realm. When I try to accept the realm invite it pops up with a message saying:

"You cannot play online multiplayer through Xbox Live because of how your account is set up. This can be changed in your privacy & online safety settings on Xbox.com."

I don't know why I'm getting this message because I already changed all the settings to allow and I can still play with my friends through Xbox Live, as long as it isn't via a realm.





:)