its possible you are using a different version of the game, insider program has a version different to the version you get through the store. make sure your game is up to date and make sure your friends settings allow friends to join.
Why can’t I connect to my friends Minecraft world on Windows 10?
Check you and your friends’ settings in Xbox.com. The changed settings may be the reason why you’re unable to connect to the world. Click the Xbox One/Windows 10 Online Privacy tab. Find Join multiplayer games and make sure it’s set to Allow.
Can Xbox and Windows 10 Minecraft play together?
Minecraft for Windows 10 is an edition of Minecraft designed for Windows 10, featuring cross-play with players on “Bedrock devices” such as Xbox One, iOS and Android phones, Nintendo Switch, and PlayStation®.
Why can’t my friend join my Minecraft world PC?
When you see Minecraft unable to connect to world error, you should try restarting the computer and the game. If you still receive the error message, you may need to remove your friend and then re-add him/her back. Then check if you can connect to your friend’s world.
How do I play Minecraft cross-platform Xbox and PC?
How can I cross-play Minecraft? After the Better Together update, Minecraft fully supports cross-platform play between PC and Xbox. If you have a Java Edition of Minecraft, you need to redeem your code on your Mojang account in order to cross-play with other platforms.
Can you get Minecraft Windows 10 for free if you have it on Xbox?
When you buy an Xbox Play Anywhere digital game through the Xbox Store or the Windows Store, it’s yours to play on Xbox and Windows 10 PC at no additional cost. Then, simply log into your Xbox Live/Microsoft account and your Xbox Play Anywhere games will be available to download.
