title: 'no such name' error on all gem install attempts
body: <p>I just installed Ruby 2.2.2 on a Windows 7 64-bit VM. Every <code>gem install &lt;gemname&gt;</code> attempt fails with the following error:</p>
  
  <blockquote>
  <pre><code>ERROR: Could not find a valid gem '&lt;gemname&gt;' ()= 0), here is why:
  Unable to download data from https://rubygems.org/ - no such name
  (https://api.rubygems.org/specs.4.8.gz)
  </code></pre>
  </blockquote>
  
  <p>However, the list generated by the <code>gem list</code> contains the gem that I thought failed. Is it actually installed or not? I assume it isn't but even if it is, the error concerns me. </p>
  
  <p>I know that I am working behind a proxy so I've tried appending <code>--http-proxy</code> but that hasn't helped either. </p>
  
  <p>Any ideas to troubleshoot this? Thanks!</p>