It seems that License Manager is trying to connect to NI.com in order to verify that you have a valid license to use the software. For now, you can exit out of License Manager, open a Browser, and verify you can reach ni.com. Once you know you can do this, go to the Start button, find National Instruments, open the folder and find License Manager, and try again. You will need a valid License Serial Number, or your NI Account that will give you access to the valid Licenses you own. If all those fail, License Manager may give you other ways to activate.
Bob Schor
