title: dynamics nav webservice error 401 Unauthorized
body: <p>When consuming a dynamics nav web service I get the following error :</p>
  
  <blockquote>
    <p>The request failed with HTTP status 401: Unauthorized.</p>
  </blockquote>
  
  <p>However when I try it in a browser it works . I tried the following but its still not working :</p>
  
  <pre><code>service.UseDefaultCredentials = true;
  service.PreAuthenticate = true;
  </code></pre>
  
  <p>also :</p>
  
  <pre><code>service.Credentials = new System.Net.NetworkCredential("XXXXX", "XXXX","XXXX");
  </code></pre>
  
  <p>I even tried using dynamics nav acces key but also it didn't work.</p>
  
  <p>Any new suggestions ?</p>