HTTP/1.1: Status Code Definitions-12029

A connection with the server could not be established. Often times caused by a Personal Firewall blocking the Agent.

具体解决方案是在页面上加一段脚本捕捉到这个错误，然后进行处理：

function EndRequestHandler(sender, args)
{
if (args.get_error() != undefined)
{
if ((args.get_response().get_statusCode() == '12007') || (args.get_response().get_statusCode() == '12029'))
{
alert('请检查您是否已经连接到Internet');
}
}
}