Ok so it would seem Blizzard CS is aware of the disconnect issue and is currently working on it. Hopefully they figure it out and fix before the weekend is up!
https://us.forums.blizzard.com/en/d4/t/an-update-on-open-beta-status-and-issues/8080
^link to dev team addressing this disconnect issue. They talk briefly but give a few reasons why it might be happening.
Have fun gamin everyone!