Ah, this may indeed explain the difference in experience that you and I have.OK that's why. For versions earlier than 974(?), IBC avoids the daily restart by changing the time, but it can't do that in later versions.
In later versions, the restart does not require authentication except once a week, but I manually authenticate on Sundays anyway.
How would you handle the situation if you were away a weekend and want your trading system to continue to operate from one week into the next?