Why is the third consecutive request.GetResponse on the same domain never executed (timeout)?

Question

Windows

var request = WebRequest.CreateHttp("https://google.com");
var response = request.GetResponse();

request = WebRequest.CreateHttp("https://google.com");
response = request.GetResponse();

request = WebRequest.CreateHttp("https://google.com/chrome");
response = request.GetResponse(); //здесь вылетает по таймауту

By the way, with fiddler all requests respond perfectly.
upd#1
Checked on Ubuntu (on the same PC) - everything is ok.
Problem on Win 7.

Answer 1

response.Dispose();

Answer 2

And if so?

request.Timeout = Timeout.Infinite;
request.KeepAlive = true;