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This technical note gives you suggestions how to manually open the correct communication port for license requests.
The communication requirement is that UDP (User Datagram Protocol) port 5093 is open on:
How you open UDP port 5093 depends on the kind of OS on the computer. It also depends on the application you use for administration of the routers/bridges.
Note that a restart might be mandatory for the change to be performed, that is, in some of the mentioned kinds of hardware. For example, the License Server typically needs to be restarted.
Port UDP 5093 must be open on the Client, the Server and between subnets. If problems persist you can contact IAR Systems support.
Note that you cannot use PING for testing communication between Client and Server. The reason for that is that PING uses ICMP for communication.
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