title: RestSharp "The operation has timed out"
body: <p>I use RestSharp to execute POST request: <code>var response = client.Execute(request);</code></p>
  
  <p>This request returns an error exception is inside <code>response</code>: <code>{"The operation has timed out"}</code>.</p>
  
  <p>What is the reason for this? How to fix it?</p>