Signage Player & Studio Pro/Lite Software not accessible behind firewalls
The SignagePlayer & Studio Pro/Lite content management software communicates with the server software over TCP/IP. The protocol uses http (as well as RSA public / private keys over standard http) and raw sockets. In order to insure proper operation the SignagePlayer must be allowed to communicate with the server. If your local area or corporate network does have a firewall, you will need to insure proper rules exist within your firewall to allow traffic originating from the media players to pass through.
The following are conditions which must exist on your network’s firewall:
IP address Destinations: *.edisplaysas.com
Protocol: TCP/IP: Socket connection
Port: 80
Note:
If you have a firewall with an existing port 80 rule, this may NOT be enough. The reason is that many firewalls will only allow HTTP traffic. However, the media player communicates using a persistent TCP/IP socket connection. You may need to add a rule in your gateway / router to specifically allow connection oriented traffic over port 80 (not just HTTP). You should know that opening port 80 on your firewall does not compromise in any way the security of your local area network. Allowing trusted traffic originating from within the LAN onto a specific destination is common practice.
Enable E Display Remote Support on Media Players: (OPTIONAL)
For E Display remote support please follow the FAQ to add firewall rules for Teamviewer access.