Firewall Ports for Restarttasks?

Hello,

we use Desktop Central for server in a DMZ.
We open all ports 139, 445 and 135 betweend the DMZ server and the desktop central
server.
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http://www.manageengine.com/products/desktop-central/faq.html

On the computers on which Desktop Central agents are installed

To enable the Desktop Central server to communicate with the Desktop Central agents (LAN Agents) while completing on-demand tasks, open the following TCP ports:

139 and 445 to enable sharing of files and printers
135 to enable remote administration

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Don't use HTTPS or change the settings.

The deploymenttask works without any problems but all "Remote shutdown"\Restarttask
don't work. The only error message is: Failed
I think the manage engine server can't contact the DMZ server.

And the DMZ system don't auto install new agent versions when I install a new build from the manage
engine server. All other servers (no-DMZ), only LAN works.

Can you give me a list with all needet ports to open?

Thanks.

Andreas