@MojangSupport my friends none can join world of another.
When I try to create a world for myself or later to invite my friends if they can but they can never join because they get the error of not being able to connect with the world.
This is likely due to your internet and/or router settings. The host needs to have a NAT type of 1 or OPEN. Also people on slow internet trying to connect from a geographical location far from the host can timeout. ^EG