"unable to connect to SR server." message on SR start

Hi!

When I launch Solid Rock 1.6.5 in the bottom left maxscript message window I can read "unable to connect to SR server." written in blue. Anyway I can manage the plugin and launch the render without problems.

But for a scene once pressed "Render" all remains blocked.

That message could be the reason?

Thank you very much.

Ah ok I didn't know, in fact the machine is in a private Lan network, no internet.
In this case it's due to something inside the complexity of the scene.

Thank you for help.