owed the process on your machine through your machine's firewall, it is time for you to allow the port to your machine on the network. Yes, there are technically 2 firewalls that you have to setup to allow an application to be visible to the outside world. Every router is different and so there are many different ways to allow port forwarding to your machine. Please view an online guide on how to set this up for your router make/model. The default port number for the master server is <strong>15940</strong>.