TP-Link TL-WN422G - 54Mbps High Gain Wireless USB... User manual

TL-WN422G
High-Gain Wireless USB Adapter
Rev: 2.0.1
1910010354

COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice. is a registered trademark
of TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or
registered trademarks of their respective holders.
No part of the specifications may be reproduced in any form or by any means or used to make
any derivative such as translation, transformation, or adaptation without permission from
TP-LINK TECHNOLOGIES CO., LTD. Copyright © 2010 TP-LINK TECHNOLOGIES CO., LTD.
All rights reserved.
http://www.tp-link.com

FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/ TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may
cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Note: The manufacturer is not responsible for any radio or tv interference caused by
unauthorized modifications to this equipment. Such modifications could void the user’s authority
to operate the equipment.
FCC RF Radiation Exposure Statement:
This device has been tested for compliance with FCC RF Exposure (SAR) limits in the typical
laptop computer configuration and this device can be used in desktop or laptop computers. This
device cannot be used with handheld PDAs (personal digital assistants). This device and its
antenna must not be co-located or operated in conjunction with any other antenna or transmitter.
SAR measurements are based on a 5mm spacing from the body and that compliance is
achieved at that distance.
CE Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference,
in which case the user may be required to take adequate measures.

National Restrictions
2400.0-2483.5 MHz
Country Restriction Reason/remark
Bulgaria General authorization required for outdoor
use and public service
France
Outdoor use limited to 10
mW e.i.r.p. within the
band 2454-2483.5 MHz
Military Radiolocation use. Refarming of the 2.4
GHz band has been ongoing in recent years to
allow current relaxed regulation. Full
implementation planned 2012
Italy If used outside of own premises, general
authorization is required
Luxembourg None General authorization required for network and
service supply(not for spectrum)
Norway Implemented
This subsection does not apply for the
geographical area within a radius of 20 km from
the centre of Ny-Ålesund
Russian
Federation
Only for indoor applications
Note: Please don’t use the product outdoors in France.

TP-LINK TECHNOLOGIES CO., LTD
TP-LINK TECHNOLOGIES CO., LTD.
South Building, No.5 Keyuan Road, Central Zone, Science & Technology Park, Nanshan,
Shenzhen, P. R. China
DECLARATION OF CONFORMITY
For the following equipment:
Product Description: High-Gain Wireless USB Adapter
Model No.: TL-WN422G
Trademark: TP-LINK
We declare under our own responsibility that the above products satisfy all the technical
regulations applicable to the product within the scope of Council Directives:
Directives 1999/5/EC
The above product is in conformity with the following standards or other normative documents:
ETSI EN 300 328 V1.7.1: 2006
ETSI EN 301 489-1 V1.8.1:2008 & ETSI EN 301 489-17 V1.3.2:2008
EN60950-1:2006
EN62311:2008
Recommendation 1999/519/EC
Person is responsible for marking this declaration:
Yang Hongliang
Product Manager of International Business

CONTENTS
Package Contents....................................................................................................1
Conventions: ............................................................................................................1
Chapter 1. Introduction ........................................................................................2
1.1 Overview of the product...................................................................................................... 2
1.2 Feature............................................................................................................................... 2
1.3 LED Status......................................................................................................................... 2
1.4 System Requirements........................................................................................................ 3
1.5 Network Configuration........................................................................................................ 3
Chapter 2. Installation Guide ...............................................................................5
2.1 Before You Begin............................................................................................................... 5
2.2 Hardware Installation.......................................................................................................... 5
2.3 Software Installation........................................................................................................... 5
2.3.1 For windows XP .......................................................................................................... 5
2.3.2 For Windows Vista .................................................................................................... 10
2.3.3 For Windows7 .......................................................................................................... 13
Chapter 3. Configuration....................................................................................17
3.1 For WindowsXP............................................................................................................... 17
3.1.1 Current Status........................................................................................................... 17
3.1.2 Profile Management.................................................................................................. 19
3.1.3 Diagnostics................................................................................................................ 27
3.1.4 Check Driver Information........................................................................................... 27
3.1.5 Check Receive and Transmit Statistical Information................................................. 28
3.2 For Windows Vista............................................................................................................ 28
3.3 For Windows7 ................................................................................................................. 31
Chapter 4. Example for Application ..................................................................33
4.1 Configuration of PSP XLink Online game......................................................................... 33

Appendix A: Specifications...................................................................................37
Appendix B: Glossary............................................................................................38

TL-WN422G High-Gain Wireless USB Adapter User Guide
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Package Contents
The following items should be found in your package:
¾One TL-WN422G High-Gain Wireless USB Adapter
¾One USB extension cable
¾One TL-WN422G High-Gain Wireless USB Adapter Resource CD, including:
•Drivers and Utility
•User Guide
•Other Helpful Information
)Note:
Make sure that the package contains the above items. If any of the listed items are damaged or
missing, please contact with your distributor.
Conventions:
The ‘Adapter’ mentioned in this user guide stands for TL-WN422G High-Gain Wireless USB
Adapter without any explanations.

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Chapter 1.Introduction
Thank you for choosing TL-WN422G High-Gain Wireless USB Adapter.
1.1 Overview of the product
The adapter is a USB 2.0 pen-size wireless adapter supporting IEEE 802.11b/g 2.4GHz radio
operation. It provides high-speed wireless connection with data rate up to 54Mbps, and wireless
roaming allows the user to move among different AP without losing the current connection. The
adapter provides excellent security features, including TKIP, AES, WPA, and up to 256 bit WEP
encryption security, which makes the network almost impenetrable.
Featuring high performance of fast transmission rates, simple installation and adaptability, as well
as strong security, the TL-WN422G High-Gain Wireless USB Adapter is the perfect solution for
personal and small business use.
1.2 Feature
¾Complies with IEEE 802.11b and IEEE 802.11g Standards
¾Provides 64/128/256 bit WEP Encryption
¾Supports WPA, WPA2, IEEE 802.1X, TKIP, AES
¾Supports 54/48/36/24/18/12/9/6Mbps or 11/5.5/2/1Mbps wireless LAN data transfer rates
¾USB 2.0 interface and compatible with USB 1.1
¾High Speed Data Rate Up to 54Mbps
¾Supports Windows 98, ME, 2000, XP, 2003, Vista and Windows 7
¾Simulates AP Mode, And Supports PSP connection
1.3 LED Status
The TL-WN422G High-Gain Wireless USB Adapter has a LED indicator.
LED Indicator:
Status Working Status
Off The driver has not been installed.
Flashing Slowly The driver has been installed but there is no data being transmitted
or received.
Flashing Quickly There is data being transmitted or received.

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1.4 System Requirements
The following are the minimum system requirements in order to use the TL-WN422G High-Gain
Wireless USB Adapter.
¾PC/AT compatible computer with a USB interface.
¾Windows 7/Vista/XP/2003/2000/98/ME operating system.
(Windows 98/ME don’t support USB 2.0, the performance could influenced)
1.5 Network Configuration
The following part will depict the possible wireless LAN PC card network configurations, which
helps you to get a better understanding of how the wireless LAN products work together in a
wireless network.
The wireless LAN products can be configured as:
Ad-hoc (peer-to-peer) Mode
This is the simplest network configuration with several computers equipped with the PC Cards
that form a wireless network whenever they are within range of one another. In ad-hoc mode,
each client is peer-to- peer, would only have access to the resources of the other client and
does not require an access point. This is the easiest and least expensive way for the SOHO to
set up a wireless network.
The image below depicts a network in ad-hoc mode.
Figure 1-1 Ad-hoc mode.
Infrastructure Mode
The infrastructure mode requires the use of an access point (AP). In this mode, all wireless
communication between two computers has to be via the AP. It doesn’t matter if the AP is
stand-alone or wired to an Ethernet network. If used in stand-alone, the AP can extend the

TL-WN422G High-Gain Wireless USB Adapter User Guide
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range of independent wireless LANs by acting as a repeater, which effectively doubles the
distance between wireless stations.
The image below depicts a network in infrastructure mode.
Figure 1-2 Infrastructure mode.

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Chapter 2.Installation Guide
2.1 Before You Begin
The operating distance range of your wireless connection can vary significantly depending on
the physical position of the wireless devices. Factors that can weaken signals by getting in the
way of your network’s radio waves are metal appliances or obstructions, and walls. Typical
ranges vary base on the types of materials and background RF (radio frequency) noise in your
home or office.
For best performance of your wireless network, you are suggested to:
1. Place your computer with this wireless card near the operating wireless router.
2. Avoid redundant obstacles and interference between the wireless devices.
3. Keep your product far from electrical devices or appliances that generate RF noise, such
as microwave ovens, 2.4 GHz cordless phone.
2.2 Hardware Installation
There are two ways to install the Adapter:
1. Plug the Adapter directly to the USB port on your computer.
2. Connect the Adapter and your computer with the extension USB cable attached in package.
)Note:
Once the Adapter is firmly in place, the Found New Hardware Wizard screen will pop up.
2.3 Software Installation
When Found New Hardware Wizard is prompted, click Cancel, and insert the Resource CD
into your CD-ROM drive. The autorun.exe will automatically run. Follow the steps below to
install the TL-WN422G High-Gain Wireless USB Adapter drivers:
2.3.1 For windows XP
1. Insert the Resource CD into your CD-ROM drive, and the screen as shown below will
display. To continue, select TL-WN422G. There will be a menu including Install Driver &
Utility and User Guide.

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Figure 2-1
2. Click Install Driver & Utility to load the following screen.
Figure 2-2
3. Soon, Figure 2-3 will display after a moment. Click Next to continue.

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Figure 2-3
4. After that, you should choose a Setup type. It is recommended that you select Install
Client Utilities and Driver. Select Install Driver Only to install driver only. Click Next to
continue.
Figure 2-4
5. Click Browse to change the destination location for the software, then click Next in the
screen below (shown in Figure 2-5).

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Figure 2-5
6. After that, select the program folder, you should create a new folder name or select one
from the Existing Folders list. It is recommended that you keep the default setting. Click
Next to continue the installation.
Figure 2-6
7. Choose configuration tool, if you are not sure, please leave it default. Then click Next to
continue.

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Figure 2-7
8. Wait a while for the setup as shown in Figure 2-8.
Figure 2-8
9. After all the steps above, you will see the screen below, click Finish to reboot the system.

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Figure 2-9
2.3.2 For Windows Vista
1. Insert the Resource CD into your CD-ROM drive, and the screen as shown below will
display. To continue, select TL-WN422G. There will be a menu including Install Driver &
Utility and User Guide.
Figure 2-10
2. Click Install Driver & Utility in the Figure 2-1 to load the following screen.

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Figure 2-11
3. Soon, Figure 2-12 will display. Click Next to continue.
Figure 2-12
4. After a while, Figure 2-13 will appear and click Yes to continue.

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Figure 2-13
5. Then the following figure will display. Please wait or click Cancel to exit the Wizard.
Figure 2-14
6. After all the steps above, you will see the screen below, click Finish to exit the Wizard.

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Figure 2-15
2.3.3 For Windows 7
1. Insert the Resource CD into your CD-ROM drive, and the screen as shown below will
display. To continue, select TL-WN422G. There will be a menu including Install Driver &
Utility and User Guide.
Figure 2-16
2. Click Install Driver & Utility to load the following screen.