Can someone suggest working Yun hardware configuration please?

ShapeShifter, thanks for the insight.

I changed my server code to the following, but still no go.

Tomorrow I think I will change the libraries back to YunServer and YunClient, even though I get errors, and I'll see if that gets me anywhere.

I will report back.

#include <BridgeServer.h>
#include <BridgeClient.h>
#include <Console.h>

BridgeServer server;

void setup(){
  Serial.begin(9600);
  Bridge.begin();
  server.noListenOnLocalhost();
  server.begin();
  Console.begin();  
}

void loop() {
  BridgeClient client = server.accept();
  if(client){
    while(client.available()<1);
    Serial.println(client.read());
    Console.println(client.read());
    client.stop();
  }
}