title: After first download with youtube-dl my access to youtube was blocked
body: <p>I used youtube-dl to download a video and use VPN to access youtube.
  After connect to the VPN my ip was changed and I can see youtube.com.
  But after try to download first video I can not download any thing and the log is:</p>
  
  <pre><code>ERROR: Unable to download webpage: &lt;urlopen error [Errno 101] Network is
  unreachable&gt; (caused by URLError(OSError(101, 'Network is unreachable'),))
  </code></pre>
  
  <p>So I looking for solution for this error and just find somthing like this link:</p>
  
  <p><a href="https://github.com/ytdl-org/youtube-dl/issues/9438" rel="nofollow noreferrer">https://github.com/ytdl-org/youtube-dl/issues/9438</a></p>
  
  <p>And after I read it, I can not find any solution for my case.</p>
  
  <p>I try to curl address also but this try is faild and it shown me this error:
  * Could not resolve host: www.youtube.com
  * Closing connection 0
  curl: (6) Could not resolve host: www.youtube.com</p>
  
  <pre><code>youtube-dl --version
  2018.03.14
  
  curl --version
  curl 7.58.0 (x86_64-pc-linux-gnu) libcurl/7.58.0 OpenSSL/1.1.1a zlib/1.2.11 
  </code></pre>
  
  <p>And wonderful thing is I can see youtube.com in my firefox browser but I can not access to it with <code>curl</code> or <code>youtube-dl</code>.</p>
  
  <p>It seems somthing crashed after about 5 minutes and I can not access to youtube website.</p>