Using this code to load a webpage
Qt Code: 
  1. iWebFrame->load(QUrl("http://www.ifanr.com/64307"));
  2.     qDebug()<<QTime::currentTime().toString();
  3.     connect(iWebFrame, SIGNAL(loadFinished(bool)), SLOT(process_LoadFinished(bool)));
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It takes 5+ minutes to get response in the slot function.

Even if I set the url to a local html, it still takes 3 minutes.

Not sure it's my reason or not.

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Full code is here: ClickMe

Loading "www.google.com" takes 21 seconds - This proves that the enviroment is correct.
Another page is from engadget.com, which takes 16 minutes. The page and its log is also attached.