If you are upgrading from a version of SmartPlant Foundation previous to 2009 R4, when you upgrade to the current version you will need to create a new license server site in Server Manager to manage your licensing configuration.
Without this license server site, you will not be able to log into SmartPlant Foundation.
Right-click the SmartPlant Foundation License Manager node and click New to launch the New License Server Wizard. For more information on creating a new license server site, see Set up a License Server site.