title: iOS really check internet connection
body: <p>I have one problem - i need to check really internet connection. What i do now? Now i use <strong>Reachability</strong> class to check if is internet connection, but my app go to crash in this case: I've connected to the wifi in airport, it's was free wi fi but if i am not registred i can't surf. But <strong>Reachability</strong>  thinkin that i've internet connection.How i use <strong>Reachability</strong> now?</p>
  
  <pre><code>if(self.internetReachableFoo.isReachable)
  {
  // We have internet          
  }
  else
  {
  //we have no internet
  }
  </code></pre>
  
  <p>So my question is, how i can use <strong>Reachability</strong> or other tools to check real internet connection?
  thanks.</p>