title: Adding Replica Set Members error in MongoDB
body: <p>i got error like this! Please advice me what should i do? I finished editing /etc/hosts with the one i will add to the primary! But it shown as errrors as below! </p>
  
  <pre><code>rs2:PRIMARY&gt; rs.add("192.168.56.101:27017")
  {
      "ok" : 0,
      "errmsg" : "Quorum check failed because not enough voting nodes responded; required 2 but only the following 1 voting nodes responded: 192.168.56.104:27017; the following nodes did not respond affirmatively: 192.168.56.101:27017 failed with Connection refused",
      "code" : 74
  }
  </code></pre>