Toad Crashes when trying to retrieve table names during auto text

On freshly opened, I connect to a database.

I start typing in the editor: SELECT * FROM table_na

As the Auto text list is propagating I get an Error that Toad is no longer responding and it closes down.

This happens mostly after the system has been to sleep.

Sounds like our check for open connection is not working. What version of TSAP do you have? Is the connection ASE, IQ or Hana? and what version of the database do you have? Is there a connection or idle timeout from the server settings?