Manage the WiFi Network Settings
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
8. From the Encryption Strength menu in the Security Encryption (WEP) section, select the
encryption key size:
•64-bit. Standard WEP encryption, using 40/64-bit encryption.
•128-bit. Standard WEP encryption, using 104/128-bit encryption. This selection
provides stronger encryption security.
9. In the Security Encryption (WEP) Key section, generate the key automatically:
a. In the Passphrase field, enter a passphrase.
b. Click the Generate button.
For 64-bit WEP, four different WEP keys are generated and the four key fields are
populated with different WEP keys. For 128-bit WEP, only one WEP key is generated
and the four key fields are populated with the same WEP key.
c. Specify the active key by selecting the Key 1, Key 2, Key 3, or Key 4 radio button.
Only one key can be the active key.
To join the guest WiFi network, a user must enter the key value for the key that you
specified as the active key.
10. Click the Apply button.
Your settings are saved.
Control the WiFi Radios
The modem router provides internal WiFi radios that broadcast signals in the 2.4 GHz and
5 GHz ranges. By default, they are on so that you can connect over WiFi to the modem
router. When the WiFi radios are off, you can still use an Ethernet cable for a LAN connection
to the modem router.
You can turn the WiFi radios on and off with the WiFi On/Off button on the modem router, or
you can log in to the modem router and enable or disable the WiFi radios through the web
management interface. If you are close to the modem router, it might be easier to press the
WiFi On/Off button. If you are away from the modem router or already logged in, it might be
easier to enable or disable the radios through the web management interface. You can also
turn the WiFi radios off and on based on a schedule. (See Set Up a WiFi Schedule on
Tip: If you want to disable the WiFi radios of the modem router, use a wired
connection to avoid being disconnected when the WiFi radios turn off.
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 right side panel of the modem router for three
If you turned off the WiFi radios, the WiFi LED turns off. If you turned on the WiFi radios,
the WiFi LED lights solid blue after about half a minute.