Ever since the new Bedrock update, we have never been able to join each others worlds, I even tried to host the game by playing on windows 10 edition and it still did not work. me and my friends all have the same nat type 2 and we're able to play together in other games like cod, gang beasts and etc, all of us has uninstalled and reinstalled the game and also reset our router.
I know I am not the only one, but this issue has been in the game for too long.
Duplicate of MCPE-36190, also affects multiple platforms