Monitoring a TCP connection

[giseli]

Hello folks,

I have a VI that monitors a TCP connection using the function "Not a
Number/Path/Refnum". When the peer (the other side which this VI is
connected is a win program in Visual Basic) closes the connection, my
VI seems unable to detect the closed connection, it is "thinking" that
the TCP refnum is still valid.
How I can handle it?

Thanks!

[MikeS81]

Hi giseli,
how did you check it? Normally you get an error if the connection fails. Can you upload your vi?

Mike

Message Edited by MikeS81 on 05-18-2008 08:50 PM

[andre.buurman@carya]

Monitor the error cluster instead of the refnum. th refnum is a local handle that has nothing to do with the actual link. It's just a pointer to the link object. The error cluster holds the information you want to monitor.

[smercurio_fc]

Specifically, you will probably want to see when you get error code 66, " The network connection was closed by the peer".