The license server broadcasts available licenses on the network to which it is connected for clients to see when arivis Pro Vision4D is started. This broadcast is done through a specific network port, which must be open on both the server and clients. Please ensure that port 1947 is open for TCP/IP on any firewall on both the server and client computers. You can test that the port is open using telnet to ping that specific port. To do this, open the command prompt on the client computer and type the following command (Telnet may need to be enabled in the windows settings, other ping tools that enable the use of a specific port can be used): 

telnet <address> <port_number>

If the ping does not work, please contact your IT support team.

Clients must have direct access to the IP address of the machine on which the license is kept. The broadcast mentioned above is only available within the local network. For machines outside the server's local network a VPN may be required, or at the very least the sentinel control center should be configured to point directly to the IP address of the server machine. Please see below.