
In modern routers, this symbol indicates the Internet Protocol, and the color of the light and the way it flashes indicates the service status as follows:
Solid green or blue light: means that the router is successfully connected to the network and the Internet service is available normally.
Constant flashing or flashing light: indicates data exchange and receiving information from the network, and is evidence of communication activity.
Steady or flashing red light: indicates a problem with Internet access, whether due to a service interruption from the provider or an error in the account and network settings.
The light goes out completely: This means that the Internet line is not recognized or there is a problem with the cable connected to the service switch.