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There is a ping VI in the NI knowledge base somewhere. I also have one contributed by a generous sole.

However, can a small app be written for each of the key machines that sends a message every N seconds. If your monitor PC does not receive that message every N + a little bit, seconds, then the PC is dead or off the network. Sort of like a watchdog. You could use TCPIP or datasocket for a quicker implementation. As for the message, I'd get it to send it's IP address.

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I like the watchdog approach. However, some of the devices I am looking at are SBCs that are streaming data to another application, and they don't support multiple connections.

Thanks for reference to the NI Knowledge base. I guess I am stuck with sytem exec. This is fine - I am just surprised that LV doesn't have built in support for Ping.

Cheers,

James

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