dr.com 404问题，为什么中国电信那么坑？

提示内容如下：
Not Found
The requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Maybe your broadband account has been used by more than one computer! It*ll resist in 1 min.
本人自问循规蹈矩，没开什么不良软件，为什么老是遇到这样的问题？账号就我一台电脑上都能遇到这样的问题？不管是是开不开共享软件都遇到这个问题，别人的电脑开不开共享都没这问题，这是什么回事？求科普。