title: Can't connect c# to mongoDb
body: <p>I'm trying to connect to a program coded in C# to a mongoDB.
  I have created a new collection and I have inserted some data . I'm using mlab as host for my dataBase.</p>
  
  <pre><code>MongoClientSettings settings = new MongoClientSettings();
  settings.Server = new MongoServerAddress("ds145128.mlab.com", 45128);
  MongoClient client = new MongoClient(settings);
  
  var db = client.GetDatabase("unknowndb");
  var coll = db.GetCollection&lt;Book&gt;("book");
  </code></pre>
  
  <p>Please help me, when I execute the program, it show me a error message that I can't connect to the DB?</p>