The Lineardraft License Service relies on your computer time being precise to within 5 seconds. Check your computer time following the steps below
Step 1: Visit an online clock with your browser
Try: https://time.is
Step 2: Confirm your computer time against the 'real' time
You should see a simple web page telling you how your computer clock measures up to 'real' time. Make sure your clock is correct within 5 seconds!