With direct mode, the device connection is made to the client and the client makes a connection to the server. This is why you cannot see the device from another client when it’s already connected to the client. In this case, the port number is like the below.
With the server mode, the device makes a connection to the server directly, and makes an auto reconnection by using server API.
Regardless of Direct or Server mode, the below commands made from the client use UDP 51110 port to send packets to the device.
So, when one of the above commands are in active, the below ports are to be used.
Therefore, in order to make BioStar related port an exception of firewall, it’s necessary to open the below ports with the server mode.
TCP Port: 1470,1471,1480
UDP Port: 51110