(Home broadband is usually dialed up by a broadband cat or actively dialed up by a router. A rather painful problem is that ADSL broadband is often disconnected and disconnected. Although it is possible to turn to the network provider's technology, these problems often cannot be dealt with on the phone, requiring an ISP technician to come to the house to check. And this wait, that is, a day or two. Here, based on past experience, I have summed up the failure factors of several ADSL disconnection and network disconnection, and given the methods to deal with them. There is a technology that can bring great convenience to your life.)