Connecting to wpad.domain.com

入域机器在使用IE浏览器时，可能会遇到经常弹出Windows Security验证窗口，内容为Connecting  to wpad.domain.com

解决办法：IE  -> Internet Options -> Connections -> LAN Settings -> TURN OFF Automatically detect settings

 

原文引用：

If you run Internet Explorer, you may have noticed that often when you first load up IE and try to navigate to a web page, there’s a delay of a few seconds longer than there is on subsequent page loads. This is because IE is trying to automatically detect your proxy settings. Inside Internet Options -> Connections -> LAN Settings, you’ll find an option called “Automatically detect settings” which defaults to on. Unless you’ve turned it off manually or are joined to a corporate domain that turns it off, it’s probably still on.

原文地址：

http://perimetergrid.com/wp/2008/01/11/wpad-internet-explorers-worst-feature/