Minecraft Windows 10 Edition - (Unable to connect to world) Friend can't join me and I can't join friend

Whenever we try to connect to each other's worlds through the Xbox app it says "Unable to connect to world". We can play together on a realms server, and can join other servers, just not each other.

I've changed my NAT type to open, and port forwarded all the required ports for the Xbox app. Still nothing.

I've tried using a VPN to several different countries but still has the same results.

We are both using Minecraft: Windows 10 Edition.

We have both uninstalled and reinstalled Minecraft, no luck.

Same help!!!! Me!!!!

The steps aren't hard, but none of these steps fix the issue.  The rest of my home network accesses online content just fine.  We all game together on other games without issue.  This is the only game where this problem persists, and we can't even get an error message or description of the problem.  This has been months!

We planned on picking up a few more copies of Minecraft for his brother and one of his friends.  Not anymore.

Yeah my friend and we didnt want people to join while he was away and changed it to invite only and i cant join even if he switched back to friends of friends i still couldnt join and he is pretty pissed at me for making him change the settings

The solution that was given is BS. It's not that we CAN'T log onto on line games or get on line it's the fact that you can't invite friends that are on the xbox app even though it shows they are on line. It's either a minecraft issue, xbox app issue, or combination of both.

I have a similar problem when my friends try to join me it always says locating server and doesn't change alsi i can see them in my world but it never says the joined the game