This is prominent, I do not have spectrum(my isp) security shield on, i flushed my dns and all that. My friend can connect to host perfectly fine. I also did a file check and it was ok.
The disconnection feels rather like a timeout rather than a boot since mobs and my character still move (with desynced response) for a moment before it.
When I host the world then the former host joins, they fail to join before loading fully.