I have IS and a license file, whether I go through settings-subscriptions-activate or double-click on the file the result is the same.
Per the instructions you get a popup window that supposed to asks you if you want to install the licence and to click "yes". My popup is blank. Nothing to click on. The popup sits there on the screen no matter how long I wait, and you can't "x" it out or close the user interface with restarting.