NetMQ hello world Error with go-zeromq

[alberk8]

Environment

NetMQ Version: 4.0.0.207   
Operating System:  Windows 10 Pro Build 18363.836
.NET Version:     .Net Core 3.1

Expected behaviour

Return a "World" from go-zeromq
The python implementation of the zmq client works.
https://zeromq.org/languages/python/

Actual behaviour

The go-zeromq throws error.
https://github.com/go-zeromq/zmq4/blob/master/example/rrworker.go

zmq4: could not open a ZMTP connection with "tcp://*:5559": zmq4: could not initialize ZMTP connection:
github.com/go-zeromq/zmq4.Open
/home/smart/go/src/github.com/go-zeromq/zmq4/conn.go:92

• zmq4: could not exchange greetings:
  github.com/go-zeromq/zmq4.(*Conn).init
  /home/smart/go/src/github.com/go-zeromq/zmq4/conn.go:104
• zmq4: could not recv greeting:
  github.com/go-zeromq/zmq4.(*Conn).greet
  /home/smart/go/src/github.com/go-zeromq/zmq4/conn.go:146
• could not read ZMTP greeting:
  github.com/go-zeromq/zmq4.(*greeting).read
  /home/smart/go/src/github.com/go-zeromq/zmq4/protocol.go:98
• unexpected EOF

Steps to reproduce the behaviour

1. compile the above go worker project and run it.
2. debug run the dot net code.

using (var client = new RequestSocket())
 {
   client.Connect("tcp://192.168.88.110:5559");
               
   for (int i = 0; i < 10; i++)
   {
     Console.WriteLine("Sending Hello");
     client.SendFrame( "Hello");
     var message = client.ReceiveFrameString();
          Console.WriteLine("Received {0}", message);
    }
 }

[stale]

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