Is there a list of IP addresses or server names that QuickBooks Enterprise Desktop needs access to in order to function?  Currently our PC running QuickBooks Desktop will get an error message every few days that says, "Your QuickBooks subscription has expired" (see attached) if the PC does not have full internet access through the company firewall.

It appears QuickBooks is validating its license online often, and if it doesn't have access to some Intuit online servers then it thinks the product is invalid and will not function again unless we give the PC temporary full internet access.

Can you let me know what external servers QuickBooks Desktop is trying to valid its license with?

Thanks.