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Troubleshooting

39

Troubleshooting

This section contains troubleshooting tips for solving common problems you may encounter when using the
WebSTAR DPW939 USB Wireless LAN Adapter.

Troubleshooting the DPW939 USB Wireless LAN Adapter

This troubleshooting section provides answers to some common problems which
you may encounter while installing and/or using WebSTAR DPW939 USB
Wireless LAN Adapter. These problems require simple troubleshooting that you
can perform by yourself. Contact SciCare Broadband Services if you encounter
problems not mentioned in this section.

Problem Solution

My computer does not
recognize the installed
WebSTAR DPW939 USB
Wireless LAN Adapter.

Verify that the WebSTAR DPW939 USB
Wireless LAN Adapter drivers are properly
installed by following these instructions:

1. Open the Control Panel window from the

Windows desktop.

2. Double-click

the

System

icon. Choose one

of the following options depending on your
operating system:

•

Windows 98SE and Me users

: Select

the

Device Manager

tab.

•

Windows 2000 and XP users

: Select the

Hardware

tab; then, click

Device

Manager

.

3. Click the + symbol preceding the

Network

Adapters

item then check the

802.11b/g

Network Adapter

item.

Note:

A yellow exclamation point or a red

plus sign preceding the network adapter
means that the device driver is not properly
installed. Re-install the device driver
according to the instructions that follow next.

A yellow exclamation point
or a red plus sign appears
on the WebSTAR 802.11b
Network Adapter or
WebSTAR 802.11g
Network Adapter item.

The device driver is not properly installed.
Follow these instructions to uninstall and re-
install the driver.

1. Insert the Support CD into the CD-ROM

drive.

2. When the WebSTAR Wireless LAN

installation window appears, click

Uninstall

Utility

.

3. Restart your computer and repeat the

software installation following the installation
instructions found in the

Software and

Hardware Installation

section, earlier in

this guide.

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Содержание WebStar DPW939

Страница 1: ...WebSTAR Model DPW939 USB Wireless LAN Adapter User s Guide ...

Страница 2: ...Protected Access WPA features With these and many more outstanding features the DPW939 is sure to keep you ahead in the world of wireless computing This guide provides procedures and recommendations for installing configuring operating and troubleshooting the DPW939 for Internet access and for high speed wireless networking for your home or office Refer to the appropriate section in this guide for...

Страница 3: ...Adapter 4 Recommended Network Settings 5 Software and Hardware Installation 7 Monitoring and Configuring the WebSTAR DPW939 USB Wireless LAN Adapter 15 Configuring and Managing Network Location Settings 27 Troubleshooting 39 Regulation Domain 42 Technical Specifications 43 Glossary 45 Notices 47 Regulatory Compliance 48 For Information Back Page ...

Страница 4: ...reless LAN Adapter USB 2 0 extension cable with base Support CD Note Unless otherwise specified the term device in this User s Guide refers to the WebSTAR DPW939 USB Wireless LAN Adapter T11484 USB 2 0 Extension Cable with Base Support CD USB WLAN Adapter with USB Cap If any of these items are missing or damaged please contact SciCare Broadband Services at 1 800 722 2009 for assistance Additional ...

Страница 5: ... Indicators The WebSTAR DPW939 USB Wireless LAN Adapter has Activity ACT and Power PWR LED indicators Refer to the following illustration and table for LED function and indications LED Status Indication ACT Blinking The device is transmitting or receiving data packets Off There is no wireless data activity PWR On The device is receiving power from the USB port Off The device is not receiving power...

Страница 6: ...ients to communicate with each other or with a wired network In this configuration the WebSTAR DPW939 USB Wireless LAN Adapter connects to an AP using a single or multiple Internet protocol IP to establish connection to a wired or wireless LAN Note Determine your network settings before installing the device in order to take advantage of all its features Operating Range The WebSTAR DPW939 USB Wire...

Страница 7: ...reconfiguration between different locations Roaming allows you to change your location and still maintain communication between other devices within range that have compatible wireless PC cards installed Roaming among different access points is controlled automatically to maintain the wireless connectivity at all times Tips on Roaming The DPW939 can only roam between APs of the same type All compu...

Страница 8: ...ies from the support CD 2 Connect the device to your computer Important You must install the WebSTAR DPW939 USB Wireless LAN Adapter drivers and utilities from the support CD before connecting the device to your computer Before You Proceed Note the following guidelines before installing the WebSTAR DPW939 USB Wireless LAN Adapter Place the device on a flat stable surface as far from the ground as ...

Страница 9: ...indow opens displaying three device installation options 2 Select DPW939 Wireless USB Adapter The DPW939 Wireless USB Adapter installation window opens 3 Click Install Utility Note If Autorun is NOT enabled in your computer browse the contents of the support CD and double click the Setup exe file to run the CD 4 Follow the on screen instructions The device drivers and utilities are copied to your ...

Страница 10: ... USB port Notebook PC Insert the device into any USB port using the correct orientation Desktop PC A USB 2 0 extension cable with base is provided Plug the extension cable into a USB port before inserting the DPW939 802 11G Wireless Adapter USB Stick T11485 1 Double click on the WLAN Control Center icon on your desktop After a few moments the One Touch Wizard window opens displaying operation mode...

Страница 11: ...e 10 2 If you select Connect to an existing wireless LAN Station the following window opens Click Next then go to step 3 If you select Create a new wireless LAN AP go to To create a new wireless LAN next in this section 3 The following window opens Click Next ...

Страница 12: ...server address automatically are selected If they are not selected select each option Then click Finish 5 After completing the installation you must configure the WebSTAR DPW939 USB Wireless LAN Adapter using the Wireless Settings option from the Control Center right click menu Go to Control Center Right Click Menu later in this guide ...

Страница 13: ...e a new wireless LAN 1 To create a new wireless LAN select Create a new wireless LAN AP in the One Touch Wizard window Click Next 2 Verify that the SSID shown is correct or type the correct SSID in the SSID field Also select Data encryption if desired and then click Next ...

Страница 14: ... Hardware Installation 13 3 The following screen opens If your setup is complete click Finish If you want to configure Internet Connection Sharing click Next 4 The following screen opens when your setup is complete ...

Страница 15: ...tall the WebSTAR DPW939 Wireless USB Adapter WLAN Card utilities from your system View the DPW939 User s Guide Click this option to view the DPW939 User s Guide The User s Guide is in Adobe PDF format An Adobe Reader utility is included on the CD for your convenience You can also copy the User s Guide to your PC for future use Explore this CD Click this option to explore the support CD contents ...

Страница 16: ...of link to the access point and connection to the Internet Refer to the following tables for icon indications in both Infrastructure and Ad hoc networks Infrastructure network wireless LAN adapter linked to an access point ICON Indicates ICON Indicates Excellent link quality and connected to the Internet Excellent link quality but not connected to the Internet Good link quality and connected to th...

Страница 17: ...ireless function to utilize all WebSTAR DPW939 USB Wireless LAN Adapter features Then click OK Control Center Right Click Menu Right clicking the Control Center icon displays the software and utilities that the WebSTAR DPW939USB Wireless LAN Adapter supports The following illustration and list describes the utilities and features available from the Control Center right click menu A detailed descri...

Страница 18: ...Adapter 17 Preferences opens the Control Center Preference window that allows you to customize the Control Center Utility settings About Control Center opens the About Control Center window that displays the Control Center software version and copyright information ...

Страница 19: ...ight click the Control Center icon and select Wireless Settings to display the WLAN Card Settings window The WLAN Card Settings window opens Displaying General Information The WLAN Card Settings window includes icons tabbed pages and additional function keys that allow you to monitor and configure the DPW939 Click an icon in the window and then select the appropriate tab to display the individual ...

Страница 20: ...lient PCs with the same SSID are allowed to establish a connection MAC address This field displays the hardware address of a device connected to a network Current Channel This field displays the radio channel to which the card is currently tuned The channel changes as the wireless LAN adapter scans the available channels Current Data Rate This field displays the data transfer rate between the wire...

Страница 21: ...s subnet mask default gateway DNS and Windows Internet Naming Service WINS configurations Use the IP Config tab to verify your network settings The following illustration and list describes the function buttons that appear on the IP Config tab when you select the Status icon on the WLAN Card Settings window Refer to the Troubleshooting section later in this guide for additional information about t...

Страница 22: ... IP Address field 2 Configure the ping session by assigning the size and count of the packets to send and the time limit for a ping session to continue in milliseconds 3 Click the Ping button Note During the ping session the Ping button toggles into a Stop button Click Stop anytime during the session to cancel the ping session The Stop button toggles back to Ping when the ping session stops The se...

Страница 23: ...AN Assign different SSIDs to segment the wireless LAN and increase network security Set the SSID to a null string to allow your station to connect to any available access point Null string may not be used in Ad hoc mode Channel In Infrastructure mode the wireless LAN adapter automatically tunes in to the access point channel In Ad hoc mode select a channel that is allowed for use in your country r...

Страница 24: ...WPA PSK WPA Select one of these four options if you wish to use a network key to authenticate a preferred wireless network Important Use the online help to find detailed information about these Network Authentication methods Data encryption allows you to enable or disable WEP keys Wireless Network Key WEP Key Format allows you to set a hexadecimal digit or ASCII character WEP key Key Length allows...

Страница 25: ...ys based on the typed combination Important 64 bit and 40 bit WEP keys use the same encryption method and can interoperate on wireless networks This lower level of WEP encryption uses a 40 bit 10 hexadecimal digits assigned by the user secret key and a 24 bit Initialization Vector assigned by the wireless LAN adapter 104 bit and 128 bit WEP keys use the same encryption method After assigning the W...

Страница 26: ... by the network RSSI Displays the Received Signal Strength Indicator RSSI in dBm Security Shows whether a network has an enabled On or disabled Off WEP encryption BSSID Displays the MAC address of the access point or the BSSID of the Ad hoc node Search Scans all available wireless networks and displays the scan result in the Available Networks field Select an available wireless network from the Av...

Страница 27: ...y Infrastructure Linked Ad hoc Fair link quality Infrastructure Not linked Ad hoc Poor link quality Infrastructure Scanning Command Icons The command icons that appear on the WLAN Card Settings window allow you to perform various functions The following illustration and list describes these functions Apply Click to apply the changes made on the Wireless Settings utility OK Click to close the Wirel...

Страница 28: ...ays the menu bar toolbar and existing configurations The toolbar buttons allow quick access to some common commands in the Mobile Manager utility All toolbar button commands are also available from the menu bar Mobile Manager Utility Menus The following tables describe the features available from the Mobile Manager window menu bar and toolbar File Menu New Configuration Select this option to launc...

Страница 29: ...tem restart when you are using Windows 98 or Windows ME Windows 2000 and Windows XP do not require a system restart after you activate a configuration Edit Menu Note The Edit menu commands appear when you right click a configuration in the Mobile Manager window Edit Configuration The Edit Configuration option allows you to edit selected configuration items See Editing a Configuration later in this...

Страница 30: ...uration List Shows a list of available configurations Details Displays the name type and description of a selected configuration Help Menu Contents Displays the WinHelp window for context sensitive window specific online help About Mobile Manager Displays the Mobile Manager version number and copyright information Click on the WebSTAR logo to open the WebSTAR Web site ...

Страница 31: ...New Configuration Wizard dialog box opens 3 Choose one of the following configuration types then click Next Select 802 11b g Wireless Local Area Network Configuration if you have an installed WebSTAR DPW939 USB Wireless LAN Adapter in your computer Select Local Area Network Configuration if your computer has an installed network interface card other than a WebSTAR DPW939 USB Wireless LAN Adapter S...

Страница 32: ...ess from a DHCP Server to allow the system to automatically assign an IP address Or select Specify an IP address to manually enter an IP address then type the IP address and the Subnet Mask in the text box Then click Next 7 Enter the computer name that identifies your computer on the network Do not change the Primary DNS Suffix Then click Next ...

Страница 33: ...ing settings Click Advanced to display and or change the proxy server and printer sharing options Then click Next 9 Select the Activate Configuration Now option to start using the created configuration Note The Mobile Manager window displays the newly created configuration even when it is not activated 10 Click Finish to close the wizard ...

Страница 34: ...mple name your configuration Work Meeting Room if you are using this connection at your workplace meeting room Description Optional This field allows you to enter additional details about the configuration in this field Network settings Wireless tab This selection allows you to edit your wireless network settings Priority of Preferred Network This field allows you to select the priority of the pre...

Страница 35: ... settings Device tab allows you to select the network adapter you want to use for this configuration Note This item appears only when you are editing a wired LAN configuration TCP IP settings IP Address tab This selection allows you to verify and or change the way your computer receives an IP address Obtain an IP address from a DHCP server The Dynamic Host Configuration Protocol DHCP server assign...

Страница 36: ...ou to disable the proxy server Enable Proxy Server This selection allows you to use the Proxy server to access the Internet Note You may gain access to local addresses easier and faster if you do not use the proxy server Use the same proxy server for all protocols This selection specifies whether you want to use the same proxy server to gain access to the Internet using all protocols Servers field...

Страница 37: ...o select the default printer for printer sharing Default printer This option allows you to select the default printer from a list of installed printers Click New to add a new printer using the Windows Add Printer Wizard Click Properties to display the properties of a selected printer Command options Click these buttons to activate save or cancel changes made in the configuration Click Close to clo...

Страница 38: ...Site Monitor utility 1 Right click the Control Center icon on the Windows taskbar and select Site Monitor The Site Monitor survey message appears 2 Click OK The Site Monitor window opens To view available wireless connections The Site Monitor main window displays the available wireless connections and the SNR value of each available connection Use the Site Monitor window to locate the available wi...

Страница 39: ...onnection for troubleshooting or configuration purposes The Monitor window provides a detailed analysis of the wireless connection 1 Select the connection from the available networks displayed in the Site Monitor window 2 Click Commands from the Site Monitor window menu bar and then select Monitor The Monitor window opens ...

Страница 40: ...icon Choose one of the following options depending on your operating system Windows 98SE and Me users Select the Device Manager tab Windows 2000 and XP users Select the Hardware tab then click Device Manager 3 Click the symbol preceding the Network Adapters item then check the 802 11b g Network Adapter item Note A yellow exclamation point or a red plus sign preceding the network adapter means that...

Страница 41: ...e device and the AP Verify that the network protocol parameters IP address subnet mask gateway and DNS of your computer are correctly set Verify the proxy settings of the Web browser I cannot connect to another station with a wireless LAN device Verify that the device has the same Service Set Identifier SSID with that of the other station Verify that there is good signal reception Shorten the dist...

Страница 42: ...ce Plugged Into Non Hi Speed USB Hub message when I connected the WebSTAR DPW939 USB Wireless LAN Adapter to the USB port This warning message appears when you plug the WebSTAR DPW939 USB Wireless LAN Adapter to a USB 1 1 port Select from one of the following options according to your operating system For Windows XP users you need to upgrade your OS to Service Pack 1 to convert your USB ports to U...

Страница 43: ... the following table DSSS PHY frequency channel plan Regulatory Domain CH ID Frequency X 10 FCC X 30 FCC X 40 MKK 1 2412 MHz Yes Yes Yes 2 2417 MHz Yes Yes Yes 3 2422 MHz Yes Yes Yes 4 2427 MHz Yes Yes Yes 5 2432 MHz Yes Yes Yes 6 2437 MHz Yes Yes Yes 7 2442 MHz Yes Yes Yes 8 2447 MHz Yes Yes Yes 9 2452 MHz Yes Yes Yes 10 2457 MHz Yes Yes Yes 11 2462 MHz Yes Yes Yes 12 2467 MHz Yes Yes 13 2472 MHz...

Страница 44: ...ryption WiFi Protected Access WPA Data transfer rate 802 11g 54Mbps with auto fallback to 48 36 24 18 12 9 and 6Mbps 802 11b 11Mbps with auto fallback to 5 5 2 and 1Mbps Technology Octagonal Frequency Division Multiplexing OFDM Direct Sequence Spread Spectrum DSSS Supported Operating Systems Windows 98SE ME 2000 and XP Device Driver and Configuration Utility Wireless Setting Utility running on Mic...

Страница 45: ...Requirements USB bus powered LED Indicators Activity Power Safety and Regulatory Approvals FCC VCCI CE TELEC JATE Software Support Control Center One Touch Wizard Wireless Settings Mobile Manager Site Monitor Troubleshooting Note The DPW939 USB Wireless LAN Adapter operating distance may be shorter if there are walls barriers or interferences in the home layout or operating environment ...

Страница 46: ... standard Ethernet is normally a shared media LAN for example all the devices on the network segment share total bandwidth Ethernet networks operate at 10 Mbps using CSMA CD to run over 10BaseT cables Gateway A network component that acts as an entrance to another network IEEE 802 11 The IEEE 802 xx is a set of specifications for LANs from the Institute of Electrical and Electronic Engineers IEEE ...

Страница 47: ... The standard U S electrical power frequency is 60 Hz The AM broadcast radio frequency band is 0 55 MHz to 1 6 MHz The FM broadcast radio frequency band is 88 MHz to 108 MHz Wireless 802 11 LANs operate at 2 4 GHz SSID Service Set ID A group name shared by every member of a wireless network Only client PCs with the same SSID are allowed to establish a connection Subnet Mask A value that defines wh...

Страница 48: ...this document is subject to change without notice No part of this document may be reproduced in any form without the express written permission of Scientific Atlanta Inc Software Use Notice The software described in this document is copyrighted and furnished to you under a license agreement You may only use or copy this software in accordance with the terms of your license agreement Firmware Use N...

Страница 49: ...ference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual 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 interfer...

Страница 50: ...rovider Scientific Atlanta Inc 5030 Sugarloaf Parkway Box 565447 Lawrenceville GA 30042 770 236 5000 www scientificatlanta com Product and service availability subject to change without notice 2005 Scientific Atlanta Inc All rights reserved April 2005 Printed in United States of America Part Number 740009 Rev A ...

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