On the other hand all these functions may be. If the power or diag led light emitting diode on your linksys router is blinking it means the firmware is corrupted.

What Do The Lights Your Wifi Hub Mean Virgin Media
Why does my router keep flashing. Those blinking amber and flashing blue lights arent just for decoration each has a specific purpose from notifying you of a problem with wi fi to connection issues updates and a failed logins to your account. This light is often labeled as internet wan or marked with a symbol of globe or a satellite flying. Most importantly it has fans that keep it from overheating. They indicate your connection is up and healthy. Most routers have a single light dedicated solely to the status of the internet connection. This also applies if your routers led is dimly illuminated.
Often there is a broadband modem cable or dsl and a separate router. Just because your computers may be off or your router unplugged doesnt mean that. Blinking power or diag led on a router. One of the first things you should do when your broadband stops working is check your router. Access to your routers setup menu is also protected as it sits behind the wireless encryption. In most cases flashing lights on your router are a good thing.
There may even be a third box for voip to which a normal telephone is connected. When the routers support limit is reached the blinking lights may remain constantly lit because it is sending and receiving transmissions at a much faster rate than when fewer devices are connected. It flashes more because the channel previously used by the pc is now showing as available. A telltale sign that the router is not working properly is when no blinking lights appear. Because routers are kind of ugly its common for people to cram them in places where those vents cant get enough air to keep the router from overheating. If this happens you wont be able to do the following.
Flashing green light on router on 10 11 2019 2116 if it is the wifi light then this is a rogue indication which is an intermittent issue with the current firmware.