title: Exception 'The AMQP operation was interrupted' (code=406) occurs in .NET Client programming
body: <p>I have a 2.8.2 RabbitMQ Server and a 2.8.2 client dll, have the code to declare a queue and get a message, it works correctly (all parameters are correct):</p>
  
  <pre><code>IModel channel=null;
  
  ConnectionFactory factory = new ConnectionFactory ();
  factory.HostName = "192.168.68.4";
  _QueueName = "172.16.1.1";
  
  factory.UserName = "guest";
  factory.Password = "guest";
  factory.VirtualHost = "/";
  
  factory.RequestedHeartbeat = 30;
  
  if (factory.Endpoint == null) {
      Console.WriteLine (" factory.Endpoint==null ");
  }
  
  
  // 接受消息的队列名称是本地的IP地址
  _QueueName = "172.16.1.1";
  _RMQConnection = factory.CreateConnection ();
  
  Console.WriteLine ("factory.CreateConnection()");
  
  channel = _RMQConnection.CreateModel ();
  
  channel.QueueDeclare(_QueueName, false, false,false,null);
  </code></pre>
  
  <p>But when I download 3.0.1  RabbitMQ Server and a 3.0.1 client dll, I use the same code and have the exception:</p>
  
  <blockquote>
    <p>The AMQP operation was interrupted: AMQP close-reason, initiated by
    Peer, code=406, text="PRECONDITION_FAILED - parameters for queue
    '172.16.1.1' in vhost '/' not equivalent", classId=50, methodId=10,
    cause=</p>
  </blockquote>