網頁開不起來Network Error(tcp_error)

以前開中國的音樂v榜 這個網頁還可以打開
但最近有時是可以登入有時不能 不然就是登出時跳出下面這個

Network Error (tcp_error)

A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

For assistance, contact your network support team.

筆電連家裡的wifi或者桌電都開不了
但如果是筆電連手機的熱點就可以開啟

這是怎麼樣跟ip有關嗎?要如何解決?