OK, I'll try that on one of the machines here - as I see on other machines (that some of them have setting to automatic) when an update was coming in - and I'll see how that setting is behaving ...
Not every computer gets the notification at the same time, but the other computers should give "some" indication, if they are first connected to the internet at the same time. The main GUI can show you if the database is updated, and when the last check was performed (it won't be every 15 minutes; AFAIK there is a minimum limit but it is not shown in the GUI).
Avast checks the availability every 4 hours since your first connection, even under the "manual database update".
Since the database "version" is still being monitored, the icon
should mark the availability of a new database.
In theory, the icon should change, (replacing the notification of "ask").
Now, here is when we get to the point where:
A) in theory, it should work;, but,
B) in practice, it may not
.
As I mentioned in one of my first posts in this topic, the tray notifications and the status bar monitoring (exclamation marks over Avast's icon) are NOT working correctly for all users.
Some users can see the exclamation marks, some don't. Some users are receiving the correct tray notifications, but some are NOT. This is a bug which triggers different behaviours under the same settings.
I myself opened a topic about it, with several users reporting different behaviours (while using the same settings).
So, I hope you can see the exclamation mark over the icon when a new database is available, as you should (in theory in general, and in practice for "some" users).