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I need a solution
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I am facing exactly same problem (not able to communicate with master server, backups may not properly function) as zing said.
My client at DMZ zone (behind the firewall).
I follow your previous procedure.
1. Windows firewall is off.
2.Master & client can ping each other
2.Permit port 13724, 1556, and telnet at firewall at both direction
After that, Same problem exist.
But when I change the Firewall by permit any any (open for all port) then I can install the client without any error.
Now I need to know what are the ports are exactly needed to permit at firewall to communicate client and master server?
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