If you are referring to the SSID, the SSID password should meet your needs. If you have shared your password you can change it here:
How do you stop broadcasting your network name with Xfinity/Comcast for your home network?
Do you want to turn off the WiFi radio(s) (2.4 or 5.0) altogether ? Do you want to change the WiFi broadcast network name (SSID) to something else ? Hide the broadcast ?;
Are you trying to hide your network SSID?
You can do that by going to the Admin control panel at http://10.0.0.1 , logging in with your username and password (default is admin and password if you haven't changed them), then navigating the left side menu to
Gateway | Connection | WiFi
click Edit beside the WiFi network(s), then uncheck Enabled beside Broadcast Network Name (SSID).