We use NetXMS V1.2.13:
If you use 'Tools' - 'Shutdown System' for a linux node you get the following error (but the node is shutdown after that)
'Execute action on node xy' has encountered a problem.
Cannot execute action on node xy:
Communication failure
On Windows nodes everything is fine: "Action System.Shutdown executed successfully on node xy"
I suspect that shutdown process terminates agent before it is able to send response back to server. I will check.
Best regards,
Victor
that was my guess too, thanks.