title: Bundle install is not working
body: <p>I'm developing Ruby on Rails on Windows.</p>
  <p>Something went wrong with our local network and can't access <a href="https://www.rubygems.org" rel="noreferrer">https://www.rubygems.org</a>, seems like it is blocked or something.</p>
  <p>But I can access it through <a href="http://www.proxyfoxy.com" rel="noreferrer">http://www.proxyfoxy.com</a>.</p>
  <p>Below is the result of <code>bundle install</code>:</p>
  <blockquote>
  <p>$ bundle install</p>
  <p>Fetching source index from <a href="https://rubygems.org/" rel="noreferrer">https://rubygems.org/</a></p>
  <p>Retrying fetcher due to error (2/4): Bundler::HTTPError Could not fetch specs from <a href="https://rubygems.org/" rel="noreferrer">https://rubygems.org/</a></p>
  <p>Retrying fetcher due to error (3/4): Bundler::HTTPError Could not fetch specs from <a href="https://rubygems.org/" rel="noreferrer">https://rubygems.org/</a></p>
  <p>Retrying fetcher due to error (4/4): Bundler::HTTPError Could not fetch specs from <a href="https://rubygems.org/" rel="noreferrer">https://rubygems.org/</a></p>
  <p>Could not fetch specs from <a href="https://rubygems.org/" rel="noreferrer">https://rubygems.org/</a></p>
  </blockquote>
  <p>Is there any other way to install gems through <code>bundle install</code>?</p>