We've been observing this issue over the holidays and it is now resolved.
Update
Update
If you continue to have problems logging and get an error about an "invalid token" please delete the browser cookies for https://app.turn.ioa and https://whatsapp.turn.io and refresh
Update
Update
We've applied some extra security policy's to Turn. If you are finding yourself unable to connect, or disconnected, you need to logout and log back in again.