Asus Wireless Adapter WL-160N User Manual
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ASUS WLAN Adapter21 Chapter 3 - Software Reference Chapter 3 Software Reference 2. A u t o m a t i c G e n e r a t i o n - Ty p e a c o m b i n a t i o n o f u p t o 6 4 l e t t e r s , numbers, or symbols in the Passphrase box, the Wireless Settings Utility automatically uses an algorithm to generate four WEP Keys. Select one as your Default Key The Default Key field allows you specify which of the four encryption keys is to use for transmitting data over wireless LAN. You can change the default key by clicking on the downward arrow, selecting the number of the key you want to use, and clicking the “Apply” button. If the access point or station with which you are communicating uses the identical key by the same sequence, you can use any of the keys as the default on your WLAN Adapter. Click the “Apply” button after you have created the encryption keys, the Wireless Settings Utility uses asterisks to mask your keys. 64/128bits versus 40/104bits There are two levels of WEP Encryption: 64 bits and 128 bits. Firstly, 64 bit WEP and 40 bit WEP are the same encryption method and can interoperate in the wireless network. This lower level of WEP encryption uses a 40 bit (10 Hex character) as a “secret key” (set by user), and a 24 bit “Initialization Vector” (not under user control). This together makes 64 bits (40 + 24). Some vendors refer to this level of WEP as 40 bits and others refer to this as 64 bits. Our Wireless LAN products use the term 64 bits when referring to this lower level of encryption. Secondly, 104 bit WEP and 128 bit WEP are the same encryption method and can interoperate in the wireless network. This higher level of WEP encryption uses a 104 bit (26 Hex character) as a “secret key” (set by user), and a 24 bit “Initialization Vector” (not under user control). This together makes 128 bits (104 + 24). Some vendors refer to this level of WEP as 104 bits and others refer to this as 128 bits. Our Wireless LAN products use the term 128 bits when referring to this higher level of encryption.
22ASUS WLAN Adapter Chapter 3 - Software Reference Chapter 3 Software Reference Survey - Site Survey Use the Site Survey tab to view statistics on the wireless networks available to the WLAN Adapter and their parameters. • S S I D : T h e S S I D o f t h e a v a i l a b l e networks. • Channel: The channel used by each network. Config - Authentication This tab allows you to set the security settings to match those of your AP. It is configurable only if you have set Network Authentication to WPA or WPA2 in Config-Encryption tab. Authentication Type T h e a u t h e n t i c a t i o n t y p e m e t h o d s include: PEAP: PEAP (Protected Extensible Authentication Protocol) authentication is a version of Extensible Authentication Protocol (EAP). EAP ensures mutual authentication between a wireless client and a server that resides at the network operations center. TLS/Smart Card: TLS (Transport Layer Security) authentication is used to create an encrypted tunnel and achieve server-side authentication in a manner similar to Web server authentication using Secure Sockets Layer (SSL) protocol. This method uses digital certificates to verify the identity of a client and server. TTLS: TTLS authentication uses certificates to authenticate the server, while maintaining similar security properties to TLS such as mutual authentication and a shared confidentiality for session WEP key. LEAP: LEAP (Light Extensible Authentication Protocol) authentication is a version of Extensible Authentication Protocol (EAP). EAP ensures mutual authentication between a wireless client and a server that resides at the network operations center. Md5-challenge: Md5-challenge is a one-way encrypting algorithm that uses usernames and passwords. This method does not support key management, but require a preset key.
ASUS WLAN Adapter23 Chapter 3 - Software Reference Chapter 3 Software Reference Buttons Search – To scan all available wireless networks and show the scan result in the “Available Network” list. Connect – To associate with a network, select the network from the “Available Network” list and click this button. N O T E : Some a c c e s s p o i n t s m a y disable SSID b r o a d c a s t a n d hide themselves from “Site Survey” or “Site Monitor”, however, you can connect such AP if you know their SSID. • RSSI: The Received Signal Strength Indication (RSSI) transmitted by each network. This information is helpful in determining which network to connect to. The value is then normalized to a dBm value. • Security: Wireless network encryption information. All devices in the network should use the same encryption method to ensure the communication. • BSSID: The media access control (MAC) address of the access point or the Basic Service Set ID of the Ad Hoc node. About - Version Info Use the Version Info tab to view program and WLAN Adapter version information. The program version information field includes the Copyright and utility version. The version information includes the NDIS version, driver name, driver version and hardware version. This screen is an example only. Your version numbers will be different from what are shown here.
24ASUS WLAN Adapter Chapter 3 - Software Reference Chapter 3 Software Reference Link State WLAN Adapter “Link State” icon appears on the left side of the WLAN Adapter Settings. Use the icon to view the current signal status. Exit Wireless Settings To exit Wireless Settings, you can click OK or Cancel. Excellent Link Quality (Infrastructure) Good Link Quality (Infrastructure) Fair Link Quality (Infrastructure) Poor Link Quality (Infrastructure) Not linked (Infrastructure)
ASUS WLAN Adapter25 Chapter 3 - Software Reference Chapter 3 Software Reference Windows® XP Wireless Options The wireless options window shown below is only available for Windows® XP. It appears when you run the Control Center utility at the first time. Select the utility you want to use for configuring your WLAN Adapter. Only use Windows wireless function – Only use Windows® XP Wireless Zero Configuration service to configure the WLAN Adapter. Only use our WLAN utilities and disable XP wireless function – Only use ASUS WLAN utilities to configure the WLAN Adapter. Configuring with Windows® Wireless Zero Configuration service If you want to configure your WLAN Adapter via Windows® Wireless Zero Configuration (WZC) service, follow the instruction below to make the settings. 2. A window prompts out asking you for the key if you have set up encryption on your wireless router, input the keys and click Connect. The connection is complete. 1. Double-click the wireless network icon on the task bar at the right bottom corner of the desktop to view available networks.Select the AP and click Connect.
26ASUS WLAN Adapter Chapter 3 - Software Reference Chapter 3 Software Reference To set up the wireless connection properties, right-click the wireless icon on the taskbar and select Open Network Connection. Then right-click the network connection icon and select Property to open the Wireless Network Connection Status page. 1. The General page shows status, duration, speed, and signal strength. The green b a r s r e p r e s e n t s i g n a l s t r e n g t h , w i t h 5 bars indicating excellent signal and 1 bar meaning poor signal. 2. Select “Wireless Networks” tab to show Preferred networks. Use the Add button to add the “SSID” of available networks and set the connection preference order w i t h t h e M o v e u p a n d M o v e d o w n buttons. The radio tower with a signal icon identifies the currently connected access point. Click Properties to set the authentication of the wireless connection.
ASUS WLAN Adapter27 Chapter 3 - Software Reference Chapter 3 Software Reference Windows® Vista Wireless Options If you want to configure your WLAN Adapter via Windows® Wireless Client service, follow the instruction below to make the settings. 2. A window prompts out asking you for the key if you have set up encryption on your wireless router, input the keys and click Connect. The connection is complete. 1 . R i g h t - c l i c k t h e n e t w o r k i c o n o n t h e t a s k b a r a t t h e r i g h t b o t t o m c o r n e r o f t h e d e s k t o p . T h e n s e l e c t C o n n e c t t o a network to view available networks. Select the AP and click Connect. To set up the wireless connection properties, 1. Right-click the network icon on the taskbar and select Network and sharing Center. 2. Select Manage network connections from the prompt window. 3 Double click the wireless network connection icon to open the Wireless Network Connection Status page. 4 Click Properties to open the Property page from the Wireless Network Connection Status page. 1. The General page shows status,SSID, duration, speed, and signal strength. The green bars represent signal strength, with 5 bars indicating excellent signal and 1 bar meaning poor signal. 2. Click Properties from the Property page to set the authentication of the wireless connection,. .
ASUS WLAN Adapter Chapter 4 - Troubleshooting Chapter 4 Troubleshooting 28 4. Troubleshooting The following troubleshooting guides provide answers to some of the more common problems, which you may encounter while installing or using WLAN Adapter products. If you encounter difficulties that are not mentioned in this section, please contact the Wireless LAN Technical Support. Verify if the WLAN Adapter is installed correctly. When the WLAN Adapter setup is complete, you can verify if the driver has been setup properly. Right click My Computer, select Properties, and click the Device Manager tab. Then double-click the Network adapters icon; you should see “802.11g Network Adapter” with an icon of an expansion adapter. There should not be a “!” or “?” (problem) or “x” (disabled) symbol over this icon. There is a yellow exclamation mark or a yellow question mark in Device Manager in front of my WLAN Adapter. To resolve the problem, you should update/reinstall the WLAN Adapter driver. In “Device Manager”, right click 802.11g Network Adapter, select Properties, and select Driver tab. Click on Update Driver button, then follow the “Update Device Driver Wizard” to complete the driver installation. Cannot connect to any access points Follow the procedure below to configure your WLAN Adapter. a. Verify that the “Network Type” is in “Infrastructure” mode. b. Verify that the “SSID” of your WLAN Adapter is set to the same “SSID” of an access point. c. Verify that the “Encryption” type is the same as that of an access point. If you enabled “WEP” encryption, you must also set the same WEP Keys on both sides.
ASUS WLAN Adapter2 Chapter 4 - Troubleshooting Chapter 4 Troubleshooting Cannot connect to a Station (WLAN Adapter) Follow the procedure below to configure your WLAN Adapter. a. Verify that the “Network Type” is in “Ad Hoc” mode. b. Verify that the “SSID” of your WLAN Adapter is set to the same “SSID” of the other station (or another WLAN Adapter). c. Verify that the “channel” of the WLAN Adapter is “Auto” or set to the same “channel” of the other station (or another WLAN Adapter). d. Verify that the “Encryption” type is the same as the other station (or another WLAN Adapter). If “WEP” encryption is enabled, you must set the same “WEP” Keys on both stations. Bad link quality or bad signal strength There are two possible reasons. First is radio interference, keep the environment around the WLAN Adapter away from microwave ovens and large metal objects. Then try to reorient the WLAN Adapter antenna. Second is the distance, decrease the distance between your WLAN Adapter and the access point or station (or another WLAN Adapter). The TCP/IP protocol did not bind to the WLAN PC Adapter. This will occur when the computer already has six TCP/IP bindings in Windows 98 or ten bindings in Windows Me. These limits are imposed by the Microsoft operating system. Solution: If your computer already has the maximum number of TCP/IP bindings, remove one of the network adapters from the Network configuration before installing the WLAN Adapter driver.
30ASUS WLAN Adapter Chapter 5 Chapter 5 - Glossary Glossary 5. Glossary Access Point (AP) A networking device that seamlessly connects wired and wireless networks. access points combined with a distributed system support the creation of multiple radio cells that enable roaming throughout a facility. Ad Hoc A wireless network composed solely of stations within mutual communication range of each other (no access point). Basic Rate Set This option allows you to specify the data transmission rate. Basic Service Area (BSS) A set of stations controlled by a single coordination function. Broadband A type of data transmission in which a single medium (such as cable) carries several channels of data at once. Channel An instance of medium use for the purpose of passing protocol data units that may be used simultaneously, in the same volume of space, with other instances of medium use (on other channels) by other instances of the same physical layer, with an acceptably low frame error ratio due to mutual interference. Client A client is the desktop or mobile PC that is connected to your network. COFDM (for 802.11a or 802.11g) Signal power alone is not enough to maintain 802.11b-like distances in an 802.11a/g environment. To compensate, a new physical-layer encoding technology was designed that departs from the traditional direct-sequence technology being deployed today. This technology is called COFDM (coded OFDM). COFDM was developed specifically for indoor wireless use and offers performance much superior to that of spread-spectrum solutions. COFDM works by breaking one high-speed data carrier into several lower-speed subcarriers, which are then transmitted in parallel. Each high-speed carrier is 20 MHz wide and is broken up into 52 subchannels, each approximately 300 KHz wide. COFDM uses 48 of these subchannels for data, while the remaining four are used for error correction. COFDM delivers higher data rates and a high degree of multipath reflection recovery, thanks to its encoding scheme and error correction.