DIR-620S  Wireless N300 Router with 3G/LTE Support and
USB Port
User Manual
Overview
LED Mode Description
LAN 1-4
Solid green
A device (computer) is connected to the relevant port, 
the connection is on.
Blinking green
Data transfer through the relevant LAN port.
No light
The cable is not connected to the relevant port.
WLAN
Solid green
The router's WLAN is on.
Blinking green
Data transfer through the Wi-Fi network.
No light
The router's WLAN is off.
WPS
Blinking green
Attempting   to   add   a   wireless   device   via   the   WPS 
function.
No light
The WPS function is not in use.
USB
Solid green
A USB device is connected to the router's USB port.
No light
No USB device.
In case the Power LED is solid green and all the other LEDs are fast blinking green at the same 
time, the device is in the emergency mode. Power the device off and on. If the device is loaded in 
the emergency mode again, restore the factory default settings via the hardware RESET button.
Page 15 of 238