Every league I'm one of the first ~500 in que and as soon as the que pops up and I create a character after 5 seconds to 5 minutes of playing the game randomly crashes and puts me in the back of the que. Every. League.
We're investigating.
Edit: We've temporarily muted chat as an act of troubleshooting the issue. We'll continue to investigate.
Edit 2: Disabling all forms of cross-instance chat appears to have resolved the disconnect issue. We'll work on a more permanent solution and then restore chat when it's safe to do so.