jmeter getting Unable to tunnel through proxy. Proxy returns "HTTP/1.1 407 Proxy Authentication Required
<p>While configuring HTTP request and putting parameters in proxy server GUI, I added the name and pass of the proxy to the HTTP authorization manager.</p>

<p>But I am still getting  error </p>

<blockquote>
  <p>Unable to tunnel through proxy. Proxy returns "HTTP/1.1 407 Proxy Authentication Required.</p>
</blockquote>