(Condition 1: The power light on the ADSL cat is on, the internal network light is on, and the external network light is flashing or not: this situation is easy to manage, you don't need to do it yourself, call customer service and someone will send it to your door for management. Telecom 10010, China Netcom 10060, China Railcom 10050, China Mobile 10086, China Unicom 10010)