Hyper-V client virtual machine cannot connect to the internet

I have a machine with Windows 8.1 Pro and Norton Security 2015 installed.  Hyper-V has been enabled and a VM with Windows 7 has been created.  The VM has two virtual network adapters installed.  One of those virtual adapters is configured to share a network connection with the host (Windows 8.1) machine. 

When Norton's Smart Firewall is turned off on the (Windows 8.1) host machine, the Windows 7 VM is able to surf the internet.  When the Smart Firewall is turned on, the VM is not able to access the internet.

How can I configure the Firewall on the host machine to allow the VM to access the internet?