I am running a dedicated network to four devices. When I run the TCP Listen.vi it does not always detect all four of the devices. Sometimes it gets all of them and in the worst case only one device. The issue I have is in detecting whether it is the vi or if there is something screwed up with the network, or with the devices. I'm betting on the devices, but development engineers always tell me there stuff perfect. From time to time I have a hard time believing them for some reason.
Has anybody got any ideas how to parse out where the issue is? I am a newbie with TCP so stupid mistakes are not only possible, but highly likely.
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I think you have already revealed the possible source of the problem. I think I am not using this thing correctly based on your info. I am going to go back and rewrite things and see where I get. And thanks for the Wireshark tip. Never heard of it before.