I’ve experienced similar disconnect issues in Verdant Brink around another meta event near Jaka Itzel. Specifically, I’ve narrowed it down to the sermon event. When combat starts the game just disconnects. This has happened twice now.
Upon relogging other people reported in map chat to have disconnected aswell.
I’ve also disconnected once, near the area of the event you mention, for up untill now unknown reasons. It seems that atleast 2 meta events have this bug.