Hello,
Sorry to hear you are having issues.
In DS11 click on settings then you'll get a pop up menu click on change Lic.
then you'll get a pop up to deactivate that machine or add Lic. .. so deactivate .
so you bought 2 Lic. and you can use them on either machine . So activate one then the other .


AzDude
Stardock Community Assistant