Manage the Basic WiFi Network Settings

41

AC1600 WiFi Cable Modem Router

8.

Set up and test your WiFi devices and computers to make sure that they can connect over

WiFi.

If they do not, check the following:

•

Is your WiFi device connected to your network or another WiFi network in your area?

Some WiFi devices automatically connect to the first open network (without WiFi

security) that they discover.

•

Does your WiFi device display as a connected device in the web management

interface? (See

View Devices Currently on the Network

on page

104.) If it does, it is

connected to the network.

•

Do you use the correct network name (SSID) and password? The default SSID and

default password are on the product label.

Configure WPA/WPA2 Enterprise WiFi Security

Remote Authentication Dial In User Service (RADIUS) is an enterprise-level method for

centralized Authentication, Authorization, and Accounting (AAA) management. To provide

WPA/WPA2 enterprise WiFi security, the WiFi network that the modem router provides must

be able to access a RADIUS server.

Note:

WPS and WPA/WPA2 enterprise security cannot function together.

When you enable WPA/WPA2 enterprise security, WPS is disabled.

Tip:

If you want to change the WiFi settings of the modem router’s main

network, use a wired connection to avoid being disconnected when

the new WiFi settings take effect.



To configure WPA/WPA2 enterprise security:

1.

Launch an Internet browser from a computer or WiFi device that is connected to the

network.

2.

Type

.

A login window opens.

3.

Type

admin

for the user name and type your password.

If you did not yet personalize your password, type

password

for the password.

4.

Click the

OK

button.

The BASIC Home page displays.

5.

Select

Wireless

.

The Wireless Setup page displays.

6.

In the Security Options section, select the

WPA/WPA2 Enterprise

radio button.

Manage the Basic WiFi Network Settings

42

AC1600 WiFi Cable Modem Router

7.

In the Security Options (WPA/WPA2 Enterprise) section, enter the settings as described in

the following table.

Field

Description

Encryption Mode

From the

Encryption Mode

menu, select the enterprise mode:

•

WPA2 [AES]

. WPA2 provides a secure connection but some older

WiFi devices do not detect WPA2 and support only WPA. If your

network includes such older devices, select WPA [TKIP] + WPA2 [AES]

security.

•

WPA [TKIP] +WPA2 [AES]

. This type of security enables WiFi devices

that support either WPA or WPA2 to join the modem router’s WiFi

network.

Group Key Update Interval

Enter the interval in seconds after which the RADIUS group key is updated.

RADIUS server IP Address

Enter the IPv4 address of the RADIUS server to which the WiFi network

can connect.

RADIUS server Port

Enter the number of the port on the modem router that is used to access

the RADIUS server for authentication. The default port number is 1812.

RADIUS server Shared

Secret

Enter the shared secret (RADIUS password) that is used between the

modem router and the RADIUS server during authentication of a WiFi user.

8.

Click the

Apply

button.

Your settings are saved.

9.

Make sure that you can reconnect over WiFi to the network with its new security settings.

If you cannot connect over WiFi, check the following:

•

If your computer or WiFi device is already connected to another WiFi network in your

area, disconnect it from that WiFi network and connect it to the WiFi network that the

modem router provides. Some WiFi devices automatically connect to the first open

network without WiFi security that they discover.

•

If your computer or WiFi device is trying to connect to your network with its old

settings (before you changed the settings), update the WiFi network selection in your

computer or WiFi device to match the current settings for your network.

Manage the Basic WiFi Network Settings

43

AC1600 WiFi Cable Modem Router

•

Does your WiFi device display as an attached device? (See

View Devices Currently

on the Network

on page

104.) If it does, it is connected to the network.

•

Are you using the correct network name (SSID) and password?

Configure WEP Legacy WiFi Security for the Main WiFi

Network

Wired Equivalent Privacy (WEP) security is a legacy authentication and data encryption

mode that is superseded by WPA-PSK and WPA2-PSK. WEP limits the WiFi transmission

speed to 54 Mbps (the modem router is capable of speeds of up 300

Mbps).

Note:

WPS and WEP security cannot function together. When you enable

WEP security, WPS is disabled.

Tip:

If you want to change the WiFi settings of the modem router’s main

network, use a wired connection to avoid being disconnected when

the new WiFi settings take effect.



To configure WEP security for the main WiFi network:

1.

Launch an Internet browser from a computer or WiFi device that is connected to the

network.

2.

Type

.

A login window opens.

3.

Type

admin

for the user name and type your password.

If you did not yet personalize your password, type

password

for the password.

4.

Click the

OK

button.

The BASIC Home page displays.

5.

Select

BASIC > Wireless

.

The Wireless Setup page displays.

6.

From the

Mode

menu, select

Up to 54 Mbps

.

The WEP and WPA-PSK [TKIP] security options become visible.

7.

In the Security Options section, select the

WEP

radio button.

These options display only if you

select the

Up to 54 Mbps

mode.

Manage the Basic WiFi Network Settings

44

AC1600 WiFi Cable Modem Router

8.

From the

Authentication Type

menu in the Security Encryption (WEP) section, select one

of the following types:

•

Shared Key

. Clients can use only Shared Key authentication.

•

Automatic

. Clients can use either Open System or Shared Key authentication.

9.

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.

10.

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 main WiFi network, a user must enter the key value for the key that you

specified as the active key.

11.

Click the

Apply

button.

Your settings are saved.

Manage the Basic WiFi Network Settings

45

AC1600 WiFi Cable Modem Router

Use the WPS Wizard to Add a Device to the WiFi Network

WPS (Wi-Fi Protected Setup) lets you connect a computer or WiFi device to the modem

router’s network without entering the WiFi network passphrase or key. Instead, you use a

WPS

button or enter a PIN to connect.

If you use the push button method, the WiFi device that you are trying to connect must

provide either a physical button or a software button. If you use the PIN method, you must

know the PIN of the WiFi device that you are trying to connect.

WPS supports WPA and WPA2 WiFi security. If your modem router network is open (no WiFi

security is set, which is not the default setting for the modem router), connecting with WPS

automatically sets WPA + WPA2 WiFi security on the modem router network and generates a

random passphrase. You can view this passphrase (see

Manage the Basic WiFi Settings and

WiFi Security of the Main Network

on page

36).

Use WPS with the Push Button Method

For you to use the push button method to connect a WiFi device to the modem router’s WiFi

network, the WiFi device that you are trying to connect must provide either a physical button

or a software button. You can use the physical button and software button to let a WiFi device

join only the main WiFi network, not the guest WiFi network.



To let a WiFi device join the modem router’s main WiFi network using WPS with the

push button method:

1.

Launch an Internet browser from a computer or WiFi device that is connected to the

network.

2.

Type

.

A login window opens.

3.

Type

admin

for the user name and type your password.

If you did not yet personalize your password, type

password

for the password.

4.

Click the

OK

button.

The BASIC Home page displays.

5.

Select

ADVANCED > WPS Wizard

.