Smart Firewall Blocking Plex Media Server

I have been using Norton Firewall and Plex Merdia server for over 2 years without any issues.  About a month ago after a recent Norton update my Samsung Smart TV (10 years old) was unable to access the Plex server. I then proceed to update the firewall setting to allow full access to Plex programs.  This appeared to have fixed the issue.  However, 2 days ago the issue cropped up again.  I did not alter any setting on my end, perhaps automated update from Microsoft or Norton.  However, this time all the Plex programs have full access through the firewall and furthermore, I have added all additional recommended ports to the program remote port permission.

Please note, when I disable the firewall the TV can access the Media server.

I desperately require assistance to overcome this issue. 

Thank you.

Cumar.