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There is a problem with the router power adapter.
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The router is broken.
Router: A computer network device that transmits packets of data from one network to another to a destination, a process called routing. A router is a device that connects more than two different networks, and routing works at the third layer of the OSI model - the network layer, such as the Internet Protocol layer.
Router functions:
Connect different networks: From the point of view of filtering network traffic, the role of a router is very similar to that of a switch and a bridge.
② Choose the line router for information transmission: the main job of the router is to find an optimal transmission path for each data frame through the router, and effectively transmit the data to the destination site.
③ Static routing table: The fixed path table set in advance by the system administrator is called the static path table, which is generally set in advance according to the configuration of the network when the system is installed, and it will not change with the future network structure.
④ Dynamic routing table: The dynamic path table is the path table automatically adjusted by the router according to the operation of the network system. According to the functions provided by the routing protocol, the router automatically learns and remembers the network operation, and automatically calculates the best path for data transmission when needed.
If the router itself has problems, it is recommended to replace it directly, because the repair cost is too high.
Check whether the power supply of the router is normal.