title: Cant connect to yahoo with getSymbols in quantmod
body: <p>I write :  </p>
  
  <pre><code>library(quantmod)  
  getSymbols("AAPL")
  </code></pre>
  
  <p>I get   :   </p>
  
  <pre><code> Error in curl::curl_download(cu, tmp, handle = h) : 
     Couldn't connect to server
  </code></pre>
  
  <p>My <code>sessionInfo</code>:</p>
  
  <pre><code>&gt; sessionInfo()
  R version 3.4.1 (2017-06-30)
  
  
  
  attached base packages:
  [1] stats     graphics  grDevices utils     datasets  methods   base     
  
  other attached packages:
  [1] quantmod_0.4-10 TTR_0.23-1      xts_0.9-7       zoo_1.8-0      
  
  loaded via a namespace (and not attached):
  [1] compiler_3.4.1  tools_3.4.1     curl_2.7        grid_3.4.1      lattice_0.20-35
  &gt;
  </code></pre>
  
  <p>Any ideas?</p>