pconnect function returns handshake error

[Prasad K]

Hi all,
We are trying to run octave 4.0.0 with multiple nodes (each node consisting
of 16-cores) using cluster functions in parallel toolbox v3.1.1.
Below is the error we are getting when we try to connect to server as said
in  this link
<https://octave.sourceforge.io/parallel/package_doc/Example.html>  

"octave:2> conns = pconnect("server")
error: handshake failed
error: could not create command stream to server
error: can't poll since command stream not good
error: could not close command stream"




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