Docker firewall problem on Windows 20

I'm using Docker on Windows 10 Pro.   Using the Docker Toolbox settings UI,  I am trying to set up share access for docker to drive D.  

When I attempt to do this I get an error. "A firewall is blocking file Sharing between Windows and the containers. See documentation for more info"  The problem is explained here:  https://docs.docker.com/docker-for-windows/#firewall-rules-for-shared-drives 

Can somebody advise me how to configure Norton to circumvent this issue?