I have a question about the check for a Pro license of Displayfusion.

We have installed this on a few machines. 2 of which are not working properly. The only thing that is different is that those PC's dont have direct internet access.
So I did some testing and as soon as I give those PC's internet access the loading of the screen profile will load and everything else works fine. When i remove internet access it stops working after a while again...??

So my question is:
Whats are the FQDN's that are being checked for the licenses?
And what are intervals they is being used to check if a licens is valid?

Or am I wrong in thinking this is how it works?

Regards,
Systeembeheer RST

Ok will do.