Netgear R6900 - Nighthawk AC1900 Smart WiFi Router User Manual (en)

If you are away from the router or already logged in it might be easier to enable or disable them. You can also turn
the WiFi radios off and on based on a schedule. (See 
Use the WiFi On/Off Button
To turn the WiFi radios off and on with the WiFi On/Off button:
Press the WiFi On/Off button on the top of the router for two seconds.
If you turned off the WiFi radios, the WiFi On/Off LED and the WPS LED turn off. If you turned on the WiFi radios,
the WiFi On/Off LED and the WPS LED light.
Enable or Disable the WiFi Radios
If you used the WiFi On/Off button to turn off the WiFi radios, you can’t log in to the router to turn them back on.
You must press the WiFi On/Off button again for two seconds to turn the WiFi radios back on.
To enable or disable the WiFi radios:
Launch a web browser from a computer or WiFi device that is connected to the network.
A login window opens.
Enter the router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive.
The BASIC Home page displays.
Manage the WiFi Network Settings
Nighthawk AC1900 Smart WiFi Router Model R6900