No connection could be made because the target machine actively refused it

We don’t seem to be able to successfully use the Remote Control > Machine Commands recently, getting a “No connection could be made because the target machine actively refused it” error, this also affects the power management, so Pulse isn’t able to shut idle machines down.

It worked until recently, we tried updating to deadline 10.1.9.2, but no change.

The Render Nodes don’t have any firewall enabled, and all are running the latest Windows 10 2004, Win Build 19041.vb_release.191206-1406

Is there anything we can investigate to fix it?

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