I currently a client that resides on a separate network and on other networks can communicate with it. The problem with this is that we can't back up this client. I've been working with our network security people to get the firewall rules changed. I need to know what other ports beside 13782 and 13720 that need to be opened in order for the master/media servers and the client to communicate with each other? At this time, I can't ping this client directly from the master/media servers.
Phong, were you able to backup after following Patrick's instructions? Are you still have problems being able to ping from the master to the client? My clients outside the firewall, I had to modify their host file so they could see the master server.