Enable RDP Shortpath for public network using NAT traversal

This policy lets you control RDP Shortpath for public networks using NAT traversal. It is a direct UDP connection between the client device and session host, using the Simple Traversal Underneath NAT (STUN) protocol. Inbound ports on the session host aren't required to be allowed. If you enable or do not configure this policy setting, Remote Desktop Protocol will consider public networks non-relayed paths to establish connection with the session host. If you disable this policy, Remote Desktop Protocol will NOT consider public networks non-relayed paths to establish connection with the session host.