SONAR Protection not working after Windows 10 Upgrade

Hi, 

I just upgraded to Windows 10.  Everything in Norton Internet Security is working except for Sonar Advanced Protection.  I have the following message:

      "Your PC is not protected by SONAR Advanced Protection"

When I click "Fix Now" ... it goes it goes to "Processing" then returns "SONAR Protection ... Not Fixed"

As I said, everything else in Norton Internet Security is green

Thanks in advance for any help that can be provided