TENDA TECHNOLOGY W311MI 150Mbps Wireless-N Pico USB Adapter User Manual
SHENZHEN TENDA TECHNOLOGY CO., LTD. 150Mbps Wireless-N Pico USB Adapter Users Manual
User Man_V7TW311MI_rev. 1

Wireless Network Adapter Users’ Guide
W311MI 

Wireless Network Adapter Users’ Guide
Copyright Statement 
is the registered trademark of Shenzhen 
Tenda Technology Co., Ltd. All the products and product 
names mentioned herein are the trademarks or 
registered trademarks of their respective holders. 
Copyright of the whole product as integration, including 
its accessories and software, belongs to Shenzhen Tenda 
Technology Co., Ltd. Without the permission of Shenzhen 
Tenda Technology Co., Ltd, any individual or party is not 
allowed to copy, plagiarize, reproduce, or translate it into 
other languages. 
All the photos and product specifications mentioned in 
this guide are for references only. Upgrades of software 
and hardware may occur, and if there are changes, Tenda 
is not responsible for notifying in advance. If you would 
like to know more about our product information, please 
visit our website at www.tenda.cn.

Wireless Network Adapter Users’ Guide
Contents
Chapter 1 Introduction ...................... 1 
1.1 Package Contents ...................................1 
1.2 LED Indicator Description .......................1 
1.3 Product Features ....................................2 
1.4 Product Usage ........................................2 
1.5 Before Installation ..................................3 
1.6 Disable other manufacturer’s wireless 
network adapter ...........................................4 
1.7  Product Maintenance ............................5
Chapter 2 Installation Guide .............. 6
Chapter 3 Client Utility Interface ..... 10
3.1.1 NETWORK STATUS .............................. 13
3.1.1 NETWORK STATUS .............................. 13
3.1.2 SITE SURVEY.................................... 13
3.1.3 PROFILE MANAGEMENT......................... 14
3.1.4 STATISTICS...................................... 23
3.1.6 WPS SETTING................................. 24
3.2 AP MODE........................................... 25

Wireless Network Adapter Users’ Guide
3.2.1 BASIC SETTING ................................. 26
3.2.2 SECURITY SETTING ............................. 27
3.2.3 ACCESS CONTROL .............................. 30
3.2.5 ABOUT ........................................... 32
3.2.6 AP MODE UNDER WINDOWS 7................ 32
Chapter 4 Use the System Internal 
Wireless Configuration Program ...... 33
4.1    Wireless Network Connection under 
Windows XP..................................... 34
4.2 Wireless Network Connection under 
Windows 7 ....................................... 39
APPENDIX........................................ 40
Appendix One Acronyms and Terms. 40
Appendix Two: Product Specification42
Appendix Three:How to Set WPS ..... 43
Appendix Four FAQ .......................... 46

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Chapter 1 Introduction 
W311MI is a 11N wireless USB network adapter 
with up to 150Mbps wireless transmission rate. It 
complies with the latest IEEE802.11n standard, and is 
compatible with 802.11b/g wireless devices. With mini 
and exquisite design, it is easy to carry along. It supports 
WPS encryption method to quickly implement wireless 
encryption and secure network; supports WMM to better 
smooth video and sound; supports Windows 7, Vista, 
Windows XP, Windows 2000, MAC OS, Linux operation 
systems etc. 
In conclusion,  W311MI is a high-performance and 
cost-effective 11N wireless USB network adapter with 
good signal, long transmission range etc. 
ͳǤͳ
One Wireless USB network adapter
One Software CD (includes user guide) 
ͳǤʹ

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There is one status indicator on the side of this wireless 
network adapter. It always remains ON when working 
correctly and flashes when transferring data. 
ͳǤ͵
¾  Supports 150Mbps receiving and sending rate 
¾  Complies with IEEE 802.11n and is compatible with IEEE 
802.11b/g standards 
¾  Provides USB2.0 port 
¾  Supports 20MHz/40MHz frequency width 
¾  Detects network and changes the transmission rate 
automatically 
¾  Provides two work modes: Infrastructure and Ad-Hoc 
¾  Supports 64/128-bit WEP encryption, and WPA, WPA2 
encryption methods   
¾  Provides WPS encryption button to easily implement 
wireless encryption and secure network 
¾  Compatible with Windows 7, Vista, Windows XP, Windows 
2000, MAC OS, Linux systems, etc. 
¾  Supports WMM to better smooth your sound and video   
ͳǤͶ
W311MI Wireless USB Adapter offers fast, reliable and 
cost- effective solution for wireless access. It is best used 

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in the following circumstances: 
1.    Enables staff members who require greater mobility 
in the office to have access to wireless networks 
anywhere inside their company. 
2.  Enables wireless communication for companies or 
places which are not suitable for wired LAN installation 
because of budget or building environment restrictions, 
such as historical buildings, rentals, or places for 
short-term usage. 
3.  Suits businesses or individual who often changes 
network topology. 
4.   Suits company or individual who would like to avoid 
using expensive cables or renting lines etc. 
ͳǤͷ
1. Please peruse this user guide before you install and 
use the product. 
2. Please close or uninstall the configuration programs of 
other manufacturers’ before you install the configuration 
programs of W311MI to avoid possible UI collision.   

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3.In order to avoid possible network collision between 
this Tenda network adapter and those of other 
manufactures, we recommend you to first  disable the 
network of other manufacturer when    installaing drive. 
ͳǤ   ǯ 
1. Right click “My Computer” and select “Properties. Then 
select “Hardware” and click  ĀDevice Managerā
2.Select the wireless network adapter you want to 
disable then right click and selectĀDisableā

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ͳǤ  
1. Please keep the product away from water and humid 
environment to guarantee its normal performance 
2. Protect it against other nocuous substances (such as 
acid and alkali etc). 
3. Please don’t keep the product directly exposed to the 
sun or other object emitting great heat. 
4.  Please contact Tenda customer service if any 
problems occur.

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Chapter 2 Installation Guide
This chapter will assist you in installing network adapter 
software packet by using the included CD. The software 
packet program has integrated driver and configuration 
software. So when you are installing driver the 
configuration software will be automatically installed as 
well.
Windows XP is used as an example to explain the 
installation steps. Installation in other operation systems, 
please refer to their corresponding prompts. 
1. Please insert the Wireless USB Adapter into the      USB 
port of your computer. 
2. System will pop up a “Found New Hardware”dialogue 
box. We recommend you to select “Cancel”and use the 
attached quick installation CD to easily install driver and 
configuration software. 

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3.  Insert the included CD into the CD drive of your 
computer to auto-run the program. (If it doesn’t auto-run, 
please double click “Tenda.exe”in the CD,). When the 
welcome screen appears click  ĀRunābutton. 

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4.  Tick “I accept the terms of the license agreement” 
and click “Next”. 

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5. There are two installation methods: one is to install 
driver and Tenda WLAN Config Tool. The other is to install 
driver only . We recommend you to use the default 
installation method.
6. Click “Install” to install the driver and configuration 
software.

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7.  Click “Finish” to finish the driver and configuration 
software.
Chapter 3 Client Utility Interface
  This wireless USB network adapter uses Tenda client 
utility interface (In the following text it is abbreviated to 
UI). All functions can be configured via this software. 
Select “Start”—“All Programs” —“Tenda Wireless”— 
Tenda Wireless Utility”, or click the “Tenda Wireless 
Utility” shortcut on your PC’s desktop to start UI. 

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Click Tenda UI on the right-down corner on the desktop to 
switch Tenda UI and Zero config, and to exit UI etc. 
Note:
1. In Windows 7and VISTA, there is no switch function 
between Tenda UI and Zero config. 
2. Operation on Tenda UI becomes impossible when 
wireless is disabled or it is switched to Zero config.     
3 In Windows 2000 system, you need to use Tenda UI to 
conduct wireless configuration. 
4.In Windows XP or Windows 2003 system, if you want to 
use the system internally attached wireless configuration 
program to configure the network adapter, please first 
disable Tenda UI or switch UI to Zero config. 
5. Client application program is “Station Mode” (Client 
Mode) by default. 
6. Tenda UI users must be managers, some operations 
may be inaccessible to other ordinary users due to their 
given restricted rights.   
Client UI enables configuration of two modes Station 
mode (Client Mode) and AP mode (soft AP Mode). 

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͵ǤͳȋȌ
Station mode (Client Mode) Overview
This wireless network adapter is a common solution for 
client signal reception. 

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͵ǤͳǤͳ
The Network Status window displays status information 
regarding the wireless network as the picture below: 
͵ǤͳǤʹ
The Site Survey interface displays the available wireless 
networks in the area. When you select a wireless network 
name the detailed information of this selected wireless 
network will be displayed. 
Before you connect wireless network, please click 

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“Refresh” to update the wireless network list and select 
the one you want to connect, then click “Connect” button. 
When connecting wireless network, a dialogue box will 
pop up. For the un-encrypted network, directly confirm 
instead of changing the configuration, however for the 
encrypted wireless network, configuration of key is 
needed.  
͵ǤͳǤ͵
This window saves the general wireless network 
parameters and profiles, which helps the wireless 
adapter to quickly connect to the wireless network you 

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want. Clicking a entry in the list displays the detailed 
information of the selected profile. To connect to wireless 
network, click “Connect” or double click wireless network 
name.
Modify: To modify Site Status and Security Setting of the 
existing profiles. 
Delete: To delete the existing profiles. 
New: To create a new profile and configure the site 
status and security setting. 
1. Create a new configuration file 
1˅Click “New” to create a new file. 

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2˅Configure “Site Status” in the appearing dialogue box. 
There are Infrastructure and Ad-Hoc two network types 
and the default is Infrastructure as the below picture 
shows.

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Infrastructure is a application mode which integrates the 
wired and wireless LAN architectures. What makes it 
different from Ad-Hoc is that the computer installed with 
the wireless network adapter has to fulfill wireless 
communication via AP or wireless router. It has “wireless 
AP + wireless network adapter” mode and “wireless 
router + wireless network adapter” mode. 
Ad-Hoc is a special wireless mobile network application 
mode. All nodes in the network are all equal. 
When you are using wireless network adapter to connect 
AP or wireless router, please select Infrastructure.   
3) Security Setting: enables you to configure 

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authentication type, encryption type, and key. The 
relevant configurations here must be the same as those 
of the connected AP or router. 
Note: If the wireless router or AP you want to connect 
closes SSID broadcast function, the wireless network 
adapter will not be able to scan this wireless network 
SSID. However, you can create the corresponding 
configuration file to connect. 
   4˅Finish the above, the added wireless network 
information will be shown in the profile name list. Select 
the profile name and click “Connect” or double click 
profile name to connect the wireless network device.   

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 5˅After successful connection, click “Status” to view 
the connection status as the picture below. 
2. Ad-Hoc connection   

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1˅Set the IP address of the wireless network adapter you 
want to connect at the same net segment. 
2˅Click “New”. 
3˅Configure Site Status: Input SSID to identify the 
wireless network and select Ad-Hoc for network type. 

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4˅Security Setting: Configures authentication, 
encryption type and key. Click OK.   
5˅The added wireless network information will be shown 
in the profile list. Select the profile name and click 
“Connect” or double click the profile name.   

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6˅Search wireless network in devices of other nodes. 
Double click the wireless network you want to connect 
and it will prompt you to input a key. After that, click 
“Connect”.  
7˅It shows as the picture below after successful 
connection. 

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͵ǤͳǤͶ
Statistics is used to calculate the total Rx and Tx data 
packets, including the successful and error packet 
amount.

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Clear: click this button to delete the existing statistics 
and restart new statistics. 
͵ǤͳǤ  
WPS setting is enabled only on WPS-compliant wireless 
devices. It helps you to quickly configure the wireless 
network security. 
Refresh: To update the Pin code. 
Rescan: To rescan the WPS-enabled wireless network in 
the area. 
Disconnect: To disconnect from a connected wireless 
network.

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PIN
˖
  Click this button for PIN mode connection. 
PBC
澲
Click this button for PBC mode connection.
Please refer to appendix 3 for detailed configuration 
steps for PIN and PBC
͵Ǥʹ
AP Mode Overview   
Wireless network adapter can also serve as an access 
point to transmit wireless signals and create a wireless 
network, allowing other wireless clients to access the 
network.
Click the AP Mode on configuration interface to enter the 
AP Mode. 

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͵ǤʹǤͳ
This window is used to configure the AP’s basic 
parameters, including SSID, wireless mode and channel 
(SSID is Tenda by default, and channel is 1 by default). 
SSID: Wireless network’s ID name scanned by wireless 
adapter as a network identifier. 
Channel: 1~11 channels provided. 
Restore Default: to restore the set parameters to 
factory default settings. 
Apply: to make the configurations effective. 

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͵ǤʹǤʹ
This window is used to configure the wireless network’s 
security authentication information. 
WEP
澲
Supports 10/26 bits Hex characters or 5/13 ASCII. 
WPA-PSK
澲
Supports 8-63-bit ASCII or 8-64 Hex 
characters. 
WPA2-PSK ˖Supports 8-63-bit ASCII or 8-64 Hex 
characters. 
WPA-PSK/WPA2-PSK
˖
Supports 8-63-bit ASCII or 
8-64 hex characters. 

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 Note: 
The Hex characters include numbers 0~9 and letters a-f. 
ASCII characters include any Arabic digitals/letters and 
characters. 
1. Configure AP Mode 
1˅First input the SSID which is easy to be identified by 
you in the basic settings and keep other information 
unchanged. 
2˅Select  ĀWPA-PSK āin the drop-down menu of 
authentication type under security setting. Choose 
ĀAESāas encryption type, input a key and click “Apply”. 
3˅Other clients can have the following picture after their 
scanned usable wireless networks are successfully 

Wireless Network Adapter Users’ Guide
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connected.

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3.2.3AccessControl
Access Control is based on the MAC address to allow or 
prohibit a specified client’s access to this wireless 
network.
Filter Policy: 
Disabled: To disable the filter function. 
All Permitted: To permit all hosts whose MAC addresses 
are included in the list to access the wireless network, 
other hosts whose MAC addresses have not been added 
to the list will be prohibited by default.   
All Blocked: To prohibit all hosts whose MAC addresses 
are included in the list from accessing the wireless 
network, other hosts whose MAC addresses have not 

Wireless Network Adapter Users’ Guide
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been added to the list will be permitted by default.   
MAC Address
˖
To input the client’s MAC address you 
want to filter in the physical address field.
Add: to add the entered client MAC address to the list. 
Delete: to delete an existing MAC address in the list. 
Remove All: to delete all clients’ MAC address in the list. 
Add the MAC address of the client’s wireless network 
adapter to the list and select “All Permitted” in filter policy. 
Computers whose MAC addresses are not added to the 
list will be refused by default. 
2. Select “All Blocked” in filter policy then only host 
computers whose MAC address are included in the list 
can not be connected to this AP wireless network. 

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͵ǤʹǤͷ
This interface displays the parameters regarding the 
software as the picture below: 
͵ǤʹǤ
1. There is only AP setting and MAC table when it is 
switched to AP mode under Windows 7 system. 
2. You can change SSID in AP setting option and control 
the number of the connected clients by modifying the 
max number of peers. AP mode only has the defaulted 
WPA2-AES encryption method which can not be 
modified. 

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MAC Table: Displays all the connected clients’ MAC 
addresses.  
Chapter 4 Use the System 

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Internal Wireless Configuration 
Program
This chapter explains how to use the system internal 
configuration program to connect wireless network for 
users who don’t install Tenda configuration program. 
You must enable Windows Wireless Zero Configuration (It 
is enabled by default) when using the system internal 
wireless configuration program. 
4.1  Wireless Network 
Connection under Windows XP   
1. Right click “My Network Places” on the desktop and 
select “Properties”. 
2. Open network connection and you will see “Wireless 

Wireless Network Adapter Users’ Guide
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Network Connection Not connected”. Right click “Wireless 
Network Connection” and select “View Available Wireless 
Networks” as the picture below. 
3. On the right of the interface displays the currently 
scanned wireless networks. If the one you want to 
connect has not been scanned, click “Refresh Network 
List” to update the network list. 
Select the wireless network you want to connect, and 
click “Connect” or double click this wireless network. 
Input a key in the key dialogue box (the key input is 
case-sensitive) then click “Connect”. 

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Note: If the wireless device to connect is not encrypted, 
the key dialogue box will not pop up. 
4. When it shows “Connected” as the picture below, you 
can enjoy wireless access to Internet.   

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5. You can change wireless network key by changing 
advanced settings
6. Select “Wireless Network” and choose the wireless 
network whose configuration you want to change, and 
then click “Properties”

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7. Change the key in the appearing dialogue box. 

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4.2 Wireless Network 
Connection under Windows 7 
1. Right click wireless connection on the right-down 
corner on the desktop to view available wireless networks 
as the picture below: 
2. Select the wireless network you want to connect and 
click “Connect” or double click this wireless network. If 
you can not find the specified wireless network, click 
refresh icon on the right-up corner to update the list. 

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APPENDIX
Appendix One Acronyms and 
Terms
WLAN  Wireless Local Area Network 
802.11          A family of specifications developed by the 
IEEE for WLAN technology. 

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802.11a     An extension to 802.11 WLAN standards 
that provides up to 54 Mbps transmission 
in the 5 GHz UNI radio band. 
802.11b        An extension to 802.11 WLAN standard 
that provides up to 11 Mbps transmission 
in the 2.4 GHz ISM radio band. 802.11b 
uses DSSS modulation. 
802.11g  An extension to 802.11 WLAN standard 
that provides up to 54 Mbps transmission 
in the 2.4 GHz ISM radio band. 802.11b 
uses OFDM modulation and is backwards 
compatible with 802.11b. 
WEP  Wired Equivalent Privacy. A security 
protocol for WLANs defined in the IEEE 
802.11 standard. 
WPA    Wireless Protected Access ˈ adopts rotating 
keys.  
ICS   Microsoft Internet Connection Sharing enables 
multi-computer to share access to Internet via one PC.   

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Appendix Two: Product 
Specification
Standard  IEEE802.11g, IEEE802.11b, 
IEEE802.11n  
Port USB2.0
Frequency Range 2.412~2.462GHz
Transmission
Rate 0D[0ESV
Transmission
Power Max 11.6dBm 
Modulation
Method OFDM, CCK 
Working Temper. 0ć̚45ć
Storage Temper.  -40°c̚70Ԩ
Working
Humidity 10ˁ̚RH non-condensing 

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Appendix Three:How to Set WPS 
WPS setting supports PBC and PIN code modes. The 
setting steps of the two modes will be introduced in detail. 
The following illustrations take Tenda W311R Wireless 
Router for example.   
1.    Wireless Connection in PBC Mode   
There are usually two ways of enabling PBC on Wireless 
router (please refer to the user guide of your wireless 
router).
1.1 Use WPS button on the router 
Keep pressing the WPS button on the Router’s panel for 
one second if your wireless router supports WPS (such as 
Tenda W311R). The WPS indicator will keep flashing (for 
about 2 minutes). It indicates that the WPS function is 
enabled on the router. There are 2 ways to use wireless 
adapter for PBC connection: 

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1˅Press in the PBC button on the side of the wireless 
adapter after the router has enabled PBC function. 
澡
Scan the router SSID in the WPS configuration 
interface on the UI of the adapter and click “PBC” button 
to connect. 
The successful connection is shown as the picture: 

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2. Wireless Connections in PIN Mode   
2.1 Start Tenda wireless client program to enter the WPS 
configuration interface. The PIN code list displays the 
existing PIN of the network adapter. Copy or directly 
input this Pin Code to the PIN code field of the router 
(Please refer to the users’ guide of your wireless router). 
Take Tenda W311R as an example. First enter its WPS 
configuration interface. Enable WPS settings and select 
PIN for WPS mode then click “Save” button. Now the WPS 
indicator of the Router will start flashing. It indicates that 
WPS function is enabled.   
Click the “Rescan” to display the SSID of the connected 
devices that have enabled WPS function. Select Tenda 

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and click PIN button. When the connection is successfully 
established this wireless SSID will be added to 
configuration file list as the picture below: 
Appendix Four FAQ 
Q1: Microsoft ICS service is pending. 
 A1: If ICS service can not be enabled after a long time, 
please re-switch the Station Mode to AP Mode. Restart 
the computer if this does not work.   
Q2: ICS is already bound by another network device. 
A2: Microsoft ICS service can only combine one group of 

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WAN and LAN. This message indicates ICS may have 
been enabled by other network adapters.   
Please manually cancel ICS and re-switch to AP mode. 
Manually enable or cancel ISC 
Q3: Failed to enable ICS. 
A3: Microsoft ICS service can only combine one group of 
WAN and LAN. This message indicates ICS may have 
been enabled by other network adapters.   
1.Please manually cancel or restart and cancel ICS, then 
re-switch to AP mode. 
2. This dialogue box appears because virtual wi-fi 
miniport adapter can only be used by one wireless 
network at a time. Please disable other non- Tenda 

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wireless network adapter and re-switch to AP mode. 
Q4: Client can not obtain IP when connected to soft AP of 
the wireless network adapter. 
A4: Manually set a IP address at the same net segment 
as that of AP and the gateway at the IP address of AP. And 
communication can be achieved. 
Q5: Some function buttons on UI become grey and can 
not be used. 
A5: This is because you have switched to Zero config 
mode, please right click the Tenda UI ON the right-down 
corner of your desktop. Operations can be done after you 
have switched to Tenda UI. 
Q6: In Windows 2000 system, IP address can not be 
obtained when it is switched to AP Mode. 
A6: In Windows 2000 system, you have to manually 
configure share and then switch to AP. And an IP address 
of 192.168.0.1 will be obtained. 
Eu Declaration or Declaration of Conformity 
Hereby, SHENZHEN TENDA TECHNOLOGY CO.,LTD, 
declares that this Wireless Broadband Router is in 
compliance with the essential requirements and other 
relevant provisions of Directive 1999/5/EC. 

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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 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. 
FCC Caution: Any changes or modifications not expressly 
approved by the party responsible for compliance could 
void the user’s authority to operate this equipment. 
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, and (2) 
this device must accept any interference received, 
including interference that may cause undesired 
operation. 

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IMPORTANT NOTE : 
The product comply with the US/Canada portable RF
exposure limit set forth for an uncontrolled environment 
and are safe for intended operation as described in this 
manual. The further RF exposure reduction can be achieved 
if the product can be kept as far as possible from the user 
body or set the device to lower output power if such function
is available
Caution!
The manufacturer is not responsible for any radio or TV 
interference caused by unauthorized modifications to this 
equipment. Such modifications could void the user 
authority to operate the equipment. 
If you have any problem, please contact our customer 
service or visit our website.
Tenda website : http://www.tenda.cn
TEL: (86)0755-27657180 27653089 
Email: support@tenda.com.cn