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TD-W8961N
300Mbps Wireless N ADSL2+ Modem Router User Guide
28
Access point Settings:
These are the settings of the access point. You can configure the
rules to allow wireless-equipped computers and other devices to communicate with a
wireless network.
Access point:
Select Activated to allow wireless station to associate with the access
point.
Channel:
Select the channel you want to use from the drop-down List of Channel. This
field determines which operating frequency will be used. It is not necessary to change
the wireless channel unless you notice interference problems with another nearby
access point.
Transmit Power:
Here you can specify the transmit power of modem router. You can
select High, Medium or Low which you would like. High is the default setting and is
recommended.
Beacon Interval:
Enter a value between 20-1000 milliseconds. The Beacon Interval
value indicates the frequency interval of the beacon. A beacon is a packet broadcast by
the modem router to synchronize the wireless network. The default value is 100.
RTS/CTS Threshold:
Should you encounter inconsistent data flow, only minor reduction
of the default value 2347 is recommended. If a network packet is smaller than the preset
RTS threshold size, the RTS/CTS mechanism will not be enabled. The modem router
sends Request to Send (RTS) frames to a particular receiving station and negotiates the
sending of a data frame. After receiving an RTS, the wireless station responds with a
Clear to Send (CTS) frame to acknowledge the right to begin transmission. In most
cases, keep its default value of 2347.
Fragmentation Threshold:
This value specifies the maximum size for a packet before
data is fragmented into multiple packets. If you experience a high packet error rate, you
may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold
too low may result in poor network performance. Only minor reduction of the default
value is recommended. In most cases, it should remain at its default value of 2346.
DTIM:
This value, between 1 and 255, indicates the interval of the Delivery Traffic
Indication Message (DTIM). A DTIM field is a countdown field informing clients of the
next window for listening to broadcast and multicast messages. When the modem router
has buffered broadcast or multicast messages for associated clients, it sends the next
DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to receive the
broadcast and multicast messages. The default value is 1.
Wireless Mode:
In the drop-down list you can select “802.11b”, “802.11g”, “802.11n”,
“802.11b+g”, “802.11g+n” and “802.11b+g+n”. “802.11b+g+n” allows both 802.11b,
802.11g and 802.11n wireless stations to connect to the modem router.
11n Settings:
These are the settings of the 11n parameters. If “802.11n”, “802.11g+n” or
“802.11b+g+n” is selected for
Wireless mode
, these settings will be displayed.
Channel Bandwidth:
Select the Bandwidth you want to use from the drop-down List.
There are two options, “20 MHz” and “20/40 MHz”. If bigger bandwidth is selected,
device could transmit and receive data with higher speed.
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TD-W8961N
300Mbps Wireless N ADSL2+ Modem Router User Guide
29
Extension Channel:
If “20/40 MHz” is selected, this option will be displayed.
Guard Interval:
Select the guard interval you want from the drop-down list.
MCS:
Select the wireless transmission rate from the drop-down list. By default, the
option is AUTO.
Multiple SSIDs Settings:
These are the settings of the SSID.
SSID Index:
The index of the SSID, and in this model, you can only leave it as a default
value of 1.
Broadcast SSID:
When wireless clients survey the local area for wireless networks to
associate with, they will detect the SSID broadcast by the modem router. To broadcast
the modem router’s SSID, keep the default setting. If you don’t want to broadcast the
modem router’s SSID, select “No”.
Use WPS:
Use WPS (Wi-Fi Protected Setup) function, you can add a new wireless
device to an existing network quickly. To Use WPS, keep the default setting, and
configure the parameters in
WPS Settings
. If you don’t want to Use WPS, select “No”,
then you will see the screen as shown below.
Figure 4-15
SSID:
Wireless network name shared among all points in a wireless network. The SSID
must be identical for all devices in the wireless network. It is case-sensitive and must not
exceed 32 characters (use any of the characters on the keyboard). Make sure this
setting is the same for all stations in your wireless network. Type the desired SSID in the
space provided.
Authentication Type:
Select an authentication type from the drop-down list, which
allows you to configure security features of the wireless LAN interface. Options available
are: Disabled, WEP-64Bits, WEP-128Bits, WPA-PSK, WPA2-PSK, and WPA-PSK/
WPA2-PSK.
1)
WEP- 64Bits
To configure WEP-64Bits settings, select the WEP-64Bits option from the drop-down list. The
menu will change to offer the appropriate settings. WEP-64Bits is a data privacy mechanism
based on a 64-bit shared key algorithm, as described in the IEEE 802.11g standard.
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TD-W8961N
300Mbps Wireless N ADSL2+ Modem Router User Guide
30
Figure 4-16
2)
WEP-128Bits
To configure WEP-128Bits settings, select the WEP-128Bits option from the drop-down list.
The menu will change to offer the appropriate settings. 128-bit is stronger than 64-bit.
Figure 4-17
3)
WPA-PSK
To configure WPA-PSK settings, select the WPA-PSK option from the drop-down list. The
menu will change to offer the appropriate settings. WPA-PSK requires a shared key and does
not use a separate server for authentication. PSK keys can be ASCII or Hex type.
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TD-W8961N
300Mbps Wireless N ADSL2+ Modem Router User Guide
31
Figure 4-18
Encryption:
Select the encryption you want to use: TKIP/AES, TKIP or AES (AES is an
encryption method stronger than TKIP).
TKIP
(
T
emporal
K
ey
I
ntegrity
P
rotocol) - a wireless encryption protocol that provides
dynamic encryption keys for each packet transmitted.
AES
(
A
dvanced
E
ncryption
S
tandard) - A security method that uses symmetric
128-bit block data encryption.
Pre-Shared Key:
Enter the key shared by the modem router and your other network
devices. It must have 8-63 ASCII characters or 64 Hexadecimal digits.
4)
WPA2-PSK
To configure WPA2-PSK settings, select the WPA2-PSK option from the drop-down list. The
menu will change to offer the appropriate settings. WPA2-PSK requires a shared key and
does not use a separate server for authentication. PSK keys can be ASCII or Hex type.
Figure 4-19
5)
WPA-PSK/WPA2-PSK
To configure WPA-PSK/WPA2-PSK settings, select the WPA-PSK/WPA2-PSK option from
the
drop-down
list.
The
menu
will
change
to
offer
the
appropriate
settings.
WPA-PSK/WPA2-PSK requires a shared key and does not use a separate server for
authentication. PSK keys can be ASCII or Hex type. WPA-PSK/WPA2-PSK is more flexible
than WPA-PSK or WPA2-PSK.
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TD-W8961N
300Mbps Wireless N ADSL2+ Modem Router User Guide
32
Figure 4-20
WPS Settings:
WPS can help you to add a new wireless device to an existing network
quickly. This section will guide you how to use WPS function.
WPS state:
Display the current WPS state.
WPS mode:
If the wireless adapter supports Wi-Fi Protected Setup (WPS), you can
establish a wireless connection between wireless adapter and modem router using
either Push Button Configuration (PBC) method or PIN method, please select the one
you want.
4.3.3.1 WPS Settings
1)
PBC
If the wireless adapter supports Wi-Fi Protected Setup and the Push Button Configuration
(PBC) method, you can add it to the network by PBC with the following two methods. Click
PBC
, you will see the screen as shown below.
Figure 4-21
Method One:
Step 1:
Press the WPS button on the black panel of the modem router or click
Start WPS
button in Figure 4-21.

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