title: Unable to connect to nuget package source
body: <p>I have 2 version of Visual Studio (2013 and 2015) on my computer, and since I installed VS2013 it was not able to connect to any nuget.org package source.</p>
  
  <ol>
  <li><p>I do not connect to internet through a proxy.</p></li>
  <li><p>I tried to clean the nuget cache and reinstall the nuget package manager in both version of visual studio already.</p></li>
  </ol>
  
  <p><em>C:\Users{user}\AppData\Roaming\NuGet\nuget.Config</em>:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;configuration&gt;
      &lt;activePackageSource&gt;
         &lt;add key="nuget.org" value="https://www.nuget.org/api/v2/" /&gt;
      &lt;/activePackageSource&gt;
      &lt;packageSources&gt;
          &lt;add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" /&gt;
    &lt;/packageSources&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>When I tried to restore or install any package, VS keeps loading and after some minutes the message is:</p>
  
  <p><strong>With VS2015:</strong></p>
  
  <blockquote>
    <p>[nuget.org] Unable to load the service index for source <a href="https://api.nuget.org/v3/index.json" rel="nofollow noreferrer">https://api.nuget.org/v3/index.json</a>.
    Error al enviar la solicitud.
    No es posible conectar con el servidor remoto.</p>
    
    <p>Se produjo un error durante el intento de conexión ya que la parte conectada no respondió adecuadamente tras un periodo de tiempo, o bien se produjo un error en la conexión establecida ya que el host conectado no ha podido responder 10.115.8.100:8080</p>
  </blockquote>
  
  <p><strong>With VS2013:</strong></p>
  
  <blockquote>
    <p>Unable to connect to the remote server</p>
  </blockquote>