Copyright © 2004 Advanced American Telephones. All Rights Reserved.
AT&T and the Globe Design are trademarks of AT&T Corp., licensed to Advanced
American Telephones. All marks are trademarks of their respective corporations.
Plug&Share
™
Wireless Notebook Adapter
802.11g / 108 Mbps
6750G
User Manual
Table of Contents
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 2
Table of Contents
INTRODUCTION..........................................................................3
Overview ........................................................................3
Package contents............................................................3
System requirements ......................................................3
DRIVER & ADAPTER INSTALLATION ......................................4
Step 1: Install driver & configuration utility......................4
Step 2: Install wireless adapter ......................................4
Step 3: Recognize the hardware ....................................4
CONFIGURE ADAPTER FOR YOUR NETWORK ....................5
Installation Wizard ..........................................................5
Test Internet access........................................................6
Link Info screen ..............................................................7
Configuration screen ......................................................8
Security screen ..............................................................9
Site Survey screen ........................................................11
ENABLE FILE AND PRINTER SHARING ................................11
File & print sharing for Windows
®
XP............................12
File & print sharing for Windows®2000 ........................19
File & print sharing for Windows®Me and 98 SE ........25
TROUBLESHOOTING ..............................................................31
GLOSSARY ..............................................................................33
TECHNICAL SPECIFICATIONS ..............................................38
CARE AND MAINTENANCE ....................................................38
Before you begin
• If you have a Windows®XP or Windows®2000 operating
system, and you are inst
alling this adapter on a PC you
use at work, you must have “Administrator Rights”. This is
normally determined by your IT person at work.
• If you have used an earlier AT&T 802.11b Series adapter
(or one by another manufacturer), you must uninstall all
drivers and utilities before
installing your new adapter. If
your system has a built-in wireless adapter, you must
disable it before installing your new adapter.
Introduction
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 3
Overview
The AT&T Plug&Share™Wireless Notebook Adapter will allow you to connect a notebook computer with
an available Type II PCMCIA slot to a compatible wireless network.
Package Contents
Please check to make sure your package contains the following items:
Plug&Share
™
Wireless Notebook Adapter
108 Mbps 802.11g
CD-ROM
Contains installation software and
printable versions of this User
Manual, Quick Start Guide and
Safety & Warranty Information.
Quick
Start Guide
Safety &
Warranty
Information
System Requirements:
You must have a notebook computer with the following applications & hardware:
• Windows®98 SE, Me, 2000 or XP
• Type II PCMCIA card slot
• Intel
®
Pentium II (or higher)
• 64 MB of RAM
• CD-ROM drive
• 5 MB of available hard-disk space (60 MB to load Adobe
®
Acrobat®Reader®)
• AT&T Plug&Share™Wireless Router (or other 802.11b or g compliant router or access point)
• AT&T Plug&Share™ Wireless 6850G Router (for 108 Mbps data rate)
Installation
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 4
STEP 1: Install the Driver and Configuration Utility
1 Do NOT install adapter first. Insert the enclosed CD-ROM into your CD-ROM drive.
2 Your CD auto-run function may start automatically. If it does not, click on the Start button. Click Run
and enter D:\autorun. (If your CD-ROM drive is not your D drive, use the appropriate drive letter.)
3 When the adapter menu screen appears, click on Install Software from the menu on the left side of
the screen.
4 The InstallShield Wizard will appear.
5 Different versions of Windows
®
will present different screens. Press Next at each screen until the
Wizard driver installation has completed. IMPORTANT: Remove CD-ROM disk before continuing.
6 Some versions will present a screen that asks about restarting your computer. Choose Yes, I will
restart my computer now.
7 Click Finish, if necessary. A new icon will appear on your Windows
®
desktop. You can double-click it to
launch the utility at any time.
Proceed to Step 2 only after the software has been correctly installed.
If correctly installed, a Utility icon (four vertical bars) should appear next to your computer’s time display.
An “X” indicates that software installation was successful, but the wireless adapter is not yet activated.
STEP 2: Insert the Notebook Adapter
With the card label up, insert the card into the
notebook computer PCMCIA slot.
STEP 3: Recognize the Hardware
Depending on the Windows®operating system version running on your computer, one of several screens
may appear to inform you that the computer recognizes new hardware. Choose to install the software
automatically and click Next.
Depending on your Windows
®
version, you may see a Hardware Alert message or a Digital Signature
Not Found message. Click Continue Anyway or Ye s to complete the installation.
Depending on your Windows®version, you may have to restart your computer to complete the
installation. If a Windows®message prompts you to restart your computer, do so.
Finally, some versions may display the message Systems Settings Change. Click Yes.
Check the indicator lights to verify that the adapter is working:
• Act/Link: After the notebook adapter is inserted, the Act/Link lights will blink when there is traffic flow
on the network.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 5
Wizard • Link Info. • Configuration • Security • Site Survey • About
STEP 4: Configure the Notebook adapter for your wireless network
Check the Utility icon (four vertical bars) next to your computer’s time display. If the bars are green, you
are already connected and do not need to run the Wizard (skip to bottom of page 6). If the bars are not
green within 30 seconds, double-click the Utility icon, then click the Run Wizard button at the next
screen.
Wizard screen 1
SSID
Enter the SSID (Service Set
Identifier) used by your wireless
router or access point. The default
SSID is at&t. The SSID is case sensitive (i.e., “cat” and “Cat” are not the
same). All wireless adapters on your
network must use the same SSID as
your wireless router and/or access
point.
WEP Encryption
WEP is a form of encryption. If you
click On to enable encryption in your
wireless adapter, you must turn on
WEP in your router, and make sure
all devices use the same settings.
Click Apply to save your settings and
display Wizard screen 2 (see next page).
Double-click here to launch Utility (see below). Number of green bars shows signal strength.
CAUTION: SSID and all WEP settings must be identical in all wireless network devices. WEP
Ascii/Hex Key
must match the WEP settings used in your router (may be called Security Phrase,
Hex Key or other term).
Click to begin.
NOTE: The Wizard screen (above) always shows factory
default settings, even if you have changed them. Go to the
Configuration screen to see your customized settings.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 6
Test Internet Access
To test Internet access, launch your
web browser and enter:
www.plugandshare.att.com
When you press Enter, the AT&T
Plug&Share
™
screen should appear. If
it does not, see the Troubleshooting
section on page 31.
Wizard screen 2
This screen shows the status of your
network connection.
Your adapter should have found the
network associated with the SSID
you entered, and automatically set
the channel to agree with your wireless router and/or access point. If you
see Pass
in the top two fields on this
screen, you are ready to close this
window and begin using your wireless network. Test this by visiting the
Internet (see below).
You can view or change the adapter
setting from the other screens. Just
click on the tabs in the blue menu bar
at the top of this screen.
Wizard • Link Info. • Configuration • Security • Site Survey • About
Problems?
If this screen does not appear when
you test Internet access, or if you see
the word Fail
in either of the top two
fields of the Wizard screen shown
above, please turn to the
Troubleshooting section on page 31.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 7
Link Info
This screen displays current settings.
(To change any of these settings, click
Configuration at the top of the screen.)
Status: The MAC address of the
router, or access point, associated
with the wireless adapter.
SSID: The Service Set Identifier of
the network. This is the setting given
to the access point, or router.
TX Rate: The current transmission
speed setting.
Channel: The current channel setting
of the wireless network.
Rescan: Refresh the text fields.
Link Quality/Signal Strength/Data
Rate: The lower part of the screen
displays the current quality of the
network link, strength of the signal,
and the current transmit and receive
rates.
Wizard • Link Info. • Configuration • Security • Site Survey • About
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 8
Wizard • Link Info. • Configuration • Security • Site Survey • About
Configuration
The Configuration screen displays
the current settings of the wireless
adapter.
SSID: Enter the SSID used by your
wireless router or access point. All
wireless adapters on your network
must use the same SSID as your
wireless router and/or access point.
The SSID is case sensitive (i.e., “cat”
and “Cat” are not the same).
BSS Type: The BSS type may be set
to Infrastructure (connected to the
WLAN using an Access Point) or
Ad-Hoc (connected in a peer-to-peer
environment).
AdHoc Band: It is usually not
necessary to change this setting.
This feature is required only if you
have a peer-to-peer wired connection
between computers.
Channel: The router uses radio signals to communicate with other devices on the network. You can
change the frequency by selecting a different channel. Remember that all computers on your network
must use the same channel. Devices using AT&T Plug&Share™ wireless adapters will automatically
detect the channel used by the router and change to it.
You may have to change the channel if you are experiencing problems such as intermittent connection
and disconnection. You can perform a site survey on your wireless adapter to find out which channels
are being used by other wireless networks nearby. If other networks use the same channel (or an adjacent one), change yours to one as far away as possible from the others in use. (For example, if other
networks use channels 6, 9 and 11, try changing yours to channel 1.)
TX Rate: If you use an AT&T Plug&Share
™
router, set the TX (transmission) rate to Auto.
If you are not
using an AT&T Plug&Share
™
router, set the TX rate to the fastest speed your router or access point can
support. The default setting (Auto) will continually test to find and use the highest transmission speed
possible, but this setting may cause data errors. If you experience this problem, try a lower rate.
Preamble: The Preamble Type refers to the radio preamble, or header, which is transmitted at the
beginning of a packet of data.You should not change this setting unless directed to do so by a network
administrator.
Power Mode: Select Continuous
Access Mode (default) for fewer communication errors, although this
setting consumes more power than the others. Maximum Power Save
consumes the least power, and
Power Save consumes a diminished amount of power.
Auto Searching: This option allows your wireless adapter to automatically search for available wireless
routers or access points nearby. When enabled, your computer will connect to whichever router or
access point that has the strongest signal.
If you change any setting above, click the Apply button.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 9
Wizard • Link Info. • Configuration • Security • Site Survey • About
Security
The Security screen allows you to set
the privacy settings of your wireless
PCI adapter. All settings must match
the settings of your wireless router or
access point.
Click the drop-down menu to select a
security option:
Disable: No security. Not recommended.
WEP: Moderate security (see below).
WPA: Suitable only for large
enterprise networks (see page 10).
WPA-PSK: High security for home,
home-office & small business (see
page 10).
NOTE: If you want to enable security,
you should choose WP
A-PSK for the
highest level of security protection.
WEP Security (Wired Equivalent
Privacy): Select this option for a
moderate level of security.
Phrase/Key: Enter a security phrase.
If you choose the Hex Key Format
(see below), you must use hexadecimal digits (0-9, a-f). If you choose the
ASCII Key Format you can use letters,
numbers, spaces, and punctuation
marks. For the ASCII Key Format you
must enter five characters for 64-bit,
13 characters for 128-bit or 16 characters for 152-bit encryption. Whichever
format you use, the security phrase
you enter must match the one set for
your wireless router or access point.
You can create up to four different security phrases, for different wireless networks. Remember that
security phrases are case sensitive (i.e., “cat” and “Cat” are not the same).
Key Format: Choose ASCII or hexadecimal format. If you choose ASCII, you can use names that you
know and can easily remember for your key.
Length: Use the drop-down menu to choose a key length. The higher the number, the slower and more
secure your system is.
If you change any setting above, click the Apply button.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 10
Wizard • Link Info. • Configuration • Security • Site Survey • About
WPA Enterprise Security (WiFi
Protected Access): Select this option
only if you are using your adapter in a
large enterprise network environment
such as a company or school.
Consult your network administrator for
advice before selecting this option.
WPA Personal Security (WiFi
Protected Access, Preshared Key):
Select this option for the highest level
of security protection in a home, home
office or small business environment.
Passphrase: Enter a security phrase
at least eight characters long.The
phrase you enter must match the one
set for your wireless router or access
point. Remember that security phrases
are case sensitive (i.e., “cat” and
“Cat” are not the same).
Click the Apply button after entering
your passphrase to activate WPAPSK encryption.
Adapter Configuration
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 11
Site Survey
The Site Survey screen shows a list
of wireless networks nearby that are
available for connection. Select a
network and click Connect to establish a connection. Click Refresh to
update the list and show additional
networks that may have become
available since you last checked.
The Profile section shows a list of
profiles you may have set up for
various wireless networks; for example,
at home, at work, or in public places
such as an airport or internet café.
Click Add to create a new profile,
Remove to delete a profile, or
Properties to configure a profile to
connect with an available network.
To change network settings
Change the wireless notebook adapter settings at any time by double-clicking
the Utility icon, (4 vertical bars next to your computer’s time display). Use the
tabs in the blue bar at the top of the screen to display the Wizard, Link Info,
Configuration, Security, or Site Survey screens.
Configuring Windows®for File and Printer Sharing
Some configuration of Windows®is necessary to make full use of your wireless network. This will take a
few minutes, but it is a one-time process that you will not need to repeat.
Please turn to the pages listed for instructions on how to configure your operating system.
Windows
®
XP ............................Pages 12-18
Windows®2000 ........................Pages 19-24
Windows®Me/98 SE ................Pages 25-30
Wizard • Link Info. • Configuration • Security • Site Survey • About
Caution
Before making any changes to your networking settings, please review this section carefully.
Failure to follow these instructions precisely may result in the inability to log into your network
or computer.
If your computer is part of a work environment please contact your IT professional before
proceeding.
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 12
Configure Windows®XP for Network Sharing
Step 1
Click Start > Control Panel.
Step 2
Click Network and Internet Connections.
Step 3
Click Network Connections.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Caution
Before making any changes to your networking settings, please review this section carefully.
Failure to follow these instructions precisely may result in the inability to log into your network or
computer. If your computer is part of a work environment, please contact your IT professional
before proceeding.
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 13
Step 6
Make sure File and Printer Sharing for
Microsoft Networks appears in this list, and
check it if it is unchecked.
If you do not see it in the list, click the Install
button and follow directions to install File and
Printer Sharing for Microsoft Networks.
Click OK when File and Printer Sharing is
installed and checked.
Step 4
Click Wireless Network Connection.
Step 5
Click the Properties button.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 14
Step 7
Highlight the My Computer icon on your desktop,
then click the right mouse button.
Scroll down to click on Properties.
Step 8
Click the Change button.
Step 9
Enter a unique name to identify your computer.
Each computer must have a dif
ferent name.
Enter a workgroup name. All computers must
use the same
workgroup. It may be easiest to
use the default name, “Workgroup.”
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 15
Step 10
When configuration is complete, you must restart Windows
®
.
When Windows®restarts you will be prompted
to enter a user name and password. Be sure
to record these in a safe place. You will be
required to enter them for access to the network each time you restart Windows
®
.
Step 11
To verify that configuration is complete, doubleclick the My Computer icon on your desktop,
then double-click My Network Places.
In the next window displayed you should see
the names of all network computers.
If any computers do not appear, you will have to
follow the steps in this section on each computer
to configure them for network sharing. Make
sure each computer is assigned a different
name, and all share the same Workgroup name
you entered at Step 9.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 16
Configure Windows®XP for Printer Sharing
Step 1
Click Start > Printers and Faxes.
Step 2
Place the cursor on the printer you want to share,
then click the right mouse button.
Scroll down to select Sharing.
NOTE: If your printer is not listed in this window,
double-click Add a Printer, then follow the
instructions to set up your printer for use.
Step 3
Click the Share this printer button, then enter a
unique name for this printer.
To continue, click the Additional Drivers button.
Step 4
Check boxes for all operating systems that will use
this printer.
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 17
Configure Windows®XP for File Sharing
Step 1
Double-click the My Computer icon on your
desktop.
Step 2
Place the cursor on the disk drive you want to
share (usually Drive C:), then click the right mouse
button and scroll down to select Sharing and
Security.
NOTE: This will allow others access to all files on this
computer. To restrict access to certain folders, doubleclick on the disk, highlight a folder you want to share,
then follow steps 2-3.
Step 3
Check the Share this folder on the Network
box, then enter a unique name for the drive or
folder you want to share.
NOTE: To protect your files with higher levels of
security, please refer to instructions provided with
your Windows
®
operating system.
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®XP
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 18
To Share Network Files in Windows®XP
Step 1
Double-click the My Network Places icon on
your desktop.
Step 2
Double-click View Workgroup Computers to
see a list of all computers connected to your
network.
Step 3
Double-click any icon to see a list of all shared
folders on that computer.
Step 4
Double-click any folder for access to any file in
that folder.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 19
Configure Windows®2000 for Network Sharing
Step 1
Click Start >
Settings >
Network and Dial-up Connections.
Step 2
Double-click Local Area Connections.
Step 3
Click the Properties button.
Step 4
Make sure File and Printer Sharing for
Microsoft Networks appears in this list, and
check it if it is unchecked.
If you do not see it in the list, click the Install
button and follow directions to install File and
Printer Sharing for Microsoft Networks.
Click OK when File and Printer Sharing is
installed and checked.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Caution
Before making any changes to your networking settings, please review this section carefully.
Failure to follow these instructions precisely may result in the inability to log into your network or
computer. If your computer is part of a work environment, please contact your IT professional
before proceeding.
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 20
Step 5
Click Start >
Settings >
Control Panel.
Step 6
Double-click System.
Step 7
Click the Properties button.
Step 8
Enter a unique name to identify your computer.
Each computer must have a dif
ferent name.
Enter a workgroup name. All computers must
use the same
workgroup. It may be easiest to
use the default name, “Workgroup.”
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 21
Step 9
When configuration is complete, you must
re-start Windows
®
.
When Windows®restarts you will be prompted
to enter a user name and password. Be sure
to record these in a safe place. You will be
required to enter them for access to the
network each time you restart Windows
®
.
Step 10
To verify that configuration is complete, doubleclick the My Network Places icon on your
desktop, then double-click Computers Near Me.
In the next window displayed you should see
the names of all network computers.
If any computers do not appear, you will have to
follow the steps in this section on each computer
to configure them for network sharing. Make
sure each computer is assigned a different
name, and all share the same Workgroup name
you entered at Step 8.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 22
Configure Windows®2000 for Printer Sharing
Step 1
Click Start >
Settings >
Printers.
Step 2
Place the cursor on the printer you want to share,
then click the right mouse button.
Scroll down to select Sharing.
NOTE: If your printer is not listed in this window,
double-click Add Printer, then follow the instructions
to set up your printer for use.
Step 3
Click the Shared As button, then enter a unique
name for this printer.
To continue, click on the Security tab at the top of
this window.
Step 4
At this screen you can set permissions for each
user of the printer. Unless you have special needs
for security, it may be easiest to check Allow for all
permissions and all user names listed.
NOTE: To set more restrictive printer permissions,
please refer to instructions provided with your Windows
®
operating system.
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 23
Configure Windows®2000 for File Sharing
Step 1
Double-click the My Computer icon on your
desktop.
Step 2
Place the cursor on the disk drive you want to
share (usually Local Drive C:), then click the right
mouse button and scroll down to select Sharing.
NOTE: This will allow others access to all files on this
computer. To restrict access to certain folders, doubleclick on the disk, highlight a folder you want to share,
then follow steps 2-4.
Step 3
Click the Share this folder button, then enter a
unique name for the drive or
folder you want to share.
To continue, click the Permissions button.
Step 4
At this screen you can set permissions for each
user of shared documents. Unless you have
special needs for security, it may be easiest to
check Allow for all permissions.
NOTE: To set more restrictive permissions, please
refer to instructions provided with your Windows
®
operating system.
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®2000
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 24
To Share Network Files in Windows®2000
Step 1
Double-click the My Network Places icon on
your desktop.
Step 2
Double-click Computers Near Me to see a list
of all computers connected to your workgroup.
Step 3
Double-click any icon to see a list of all shared
folders on that computer.
Step 4
Double-click any folder for access to any file in
that folder.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 25
Configure Windows®98/Me for Network Sharing
Step 1
Click Start > Settings > Control Panel.
Step 2
Double-click Network.
Step 3
Scroll down to make sure File and Printer
Sharing for Microsoft Networks appears in this
list.
If you do not see it in the list, click the Add
button and follow directions to install File and
Printer Sharing for Microsoft Networks.
Step 4
Click the Identification tab at the top of this
screen, then enter a unique name to identify your
computer. Each computer must have a different
name.
Enter a workgroup name. All computers must
use the same workgroup. It may be easiest to
use the default name, “Workgroup.”
Windows®XP • Windows®2000 • Windows®Me/98 SE
Caution
Before making any changes to your networking settings, please review this section carefully.
Failure to follow these instructions precisely may result in the inability to log into your network or
computer. If your computer is part of a work environment, please contact your IT professional
before proceeding.
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 26
Step 5
Click the Access Control tab at the top of this
screen, then click on the Share- Level access
control button.
Step 6
Click the Configuration tab at the top of this
screen, then click the File and Print Sharing
button.
Step 7
Check the first option (I want to be able to give
others access to my files). Check the second
option if you want to share a printer connected
to this computer.
Click OK when finished.
Step 8
When configuration is complete, you must
re-start Windows®.
When Windows
®
restarts you will be prompted
to enter a user name and password. Be sure
to record these in a safe place. You will be
required to enter them for access to the
network each time you restart Windows
®
.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 27
Step 9
To verify that configuration is complete, doubleclick the Network Neighborhood icon on your
desktop.
In the next window displayed you should see
the names of all network computers.
If any computers do not appear, you will have to
follow the steps in this section on each computer
to configure them for network sharing. Make
sure each computer is assigned a different
name, and all share the same Workgroup name
you entered at Step 4.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 28
Configure Windows®98/Me for Printer Sharing
Step 1
Click Start > Settings > Printers.
Step 2
Place the cursor on the printer you want to share,
then click the right mouse button and scroll down
to select Sharing.
NOTE: If your printer is not listed in this window,
double-click Add Printer, then follow the instructions
to set up your printer for use.
Step 3
Click the Shared As button, then enter a unique
name for this printer.
To help you identify this printer, you can enter a
description in the Comment box.
To restrict access to this printer, you can enter a
password (please refer to instructions provided
with your Windows
®
operating system).
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 29
Configure Windows®98/Me for File Sharing
Step 1
Double-click the My Computer icon on your
desktop.
Step 2
Place the cursor on the disk drive you want to
share (usually Drive C:), then click the right mouse
button and scroll down to select Sharing.
NOTE: This will allow others access to all
files on this
computer. To restrict access to certain folders, doubleclick on the disk, highlight a folder you want to share,
then follow steps 2-3.
Step 3
Click the Shared As button, then enter a unique
name for the drive or folder you want to share.
To help you identify this shared resource, you can
enter a description in the Comment box.
Access Type options allow you to restrict
access to each shared resource (please refer to
instructions provided with your Windows
®
operating system).
Click OK when finished.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Configuring the Wireless Network — Windows®98 SE/Windows®Me
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 30
To Share Network Files in Windows®98/Me
Step 1
Double-click the Network Neighborhood icon on
your desktop.
Step 2
Double-click any icon to see a list of all shared
folders on that computer.
Step 3
Double-click any folder for access to any file in
that folder.
Windows®XP • Windows®2000 • Windows®Me/98 SE
Troubleshooting
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 31
Network performance is
sometimes fast, sometimes slow
Problem Solution
• Another network nearby may be using the same channel, and
causing interference. Change the Channel to a different setting
on all devices connected to your network (see page 8).
Troubleshooting
If your wireless network adapter does not work properly, try the following suggestions before seeking
repair assistance.
Cannot connect to the Internet • Verify that your cable or DSL modem is properly connected
and is receiving electrical power.
• Turn off your modem, leave it off for 15 seconds, then turn it
back on and check for Internet access.
• Confirm that your ISP account information is entered correctly
on the router you are using for Internet connections.
• Do you have Internet access at the computer connected to
your router or access point? If not, you will not be able to
connect until the router fault is corrected. Consult the user
manual for the router or access point.
• If your router or access point is connected to the Internet, try
rebooting the computer in which the adapter is installed.
• Check the communication between the adapter and the
router. If you are using an AT&T Plug&Share
™
router, open
your Internet browser on the computer that has the adapter
installed. Enter A
TT.Router or http://192.168.0.1 in the address
line. If you see the router page, there may be a problem with
your network settings. See next page for instructions.
Continuously slow network
performance, or excessive
data errors
• Set the TX Rate
to a lower transmission speed (see page 8).
• Set Power Mode
to Power Save or Continuous Access
(see page 8.)
• Set Preamble
to a lower value if necessary (see page 8).
No access to other devices on
the network
• Make sure the router power light is on. If not, check the AC
power adapter connections at the router and at the wall outlet.
• Make sure all devices connected to the network are assigned
the same SSID and the same Channel (see page 8).
• If you have enabled WEP encryption, make sure all devices
use the same encryption settings. Each device must use the
same Phrase/Key and Length (see page 9).
• If you have difficulty with file sharing or printing, you must
configure your Windows
®
operating system properly for all
devices connected to the network (see page 11).
Troubleshooting
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 32
Problem Solution
Reinstallation procedure
Follow the steps at right if the
adapter needs to be reinstalled for
any reason.
Blue screen. Nothing works.
This may occur if you choose the
wrong Windows
®
operating system
during installation. Follow the steps
at right to correct the problem.
1 Turn off your computer.
2 Remove the wireless notebook adapter.
3 Insert the CD-ROM that came with the adapter. After a
moment you should see the Auto-Run screen appear.
4 Click the Uninstall button and follow the steps to uninstall all
software and drivers.
5 When the the procedure is completed, remove the CD-ROM.
6 Re-insert the CD-ROM, turn to page 4 of this manual and
follow the steps to reinstall all software and drivers.
Cannot connect to the Internet
(Setting your computer to automatically
detect IP settings may correct this
problem.)
If remedies suggested on the previous page do not work, you
can set your computer to automatically detect IP settings, which
may allow you to connect to the Internet.
If your computer is new, it may not have an IP address, which
is required for Internet access. If you do not need a static IP
address for some special purpose, you can set your computer to
automatically detect the IP settings (see steps 1-6, below).
If your network uses static IP addresses, you should not
follow the procedure below. You will have to enter the IP
address assigned to you by your service provider.
If you use this computer on another network (perhaps at
your workplace), you should consult a technician familiar with
the network before attempting this change.
Record all settings before changing them in case you need
to restore them later.
To set your computer to automatically detect IP settings:
1 Start Internet Explorer
®
. Whether you can connect to the
Internet or not, the browser screen will appear.
2 Select Tools.
3 Select Internet Options from the dropdown menu.
4 Select Connections.
5 Select LAN Settings.
6 Select Automatically detect settings.
If you still have difficulty operating this product, or if you
need more information or help, please visit our website at
www.plugandshare.att.com
or call our Customer Service Center at
1-877-800-5400 (USA)
1-866-669-4730 (Canada)
Glossary
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 33
Access Point
Access points are the contact points (wireless
routers and transmitters) in a wireless LAN that
are connected to an Ethernet hub or server.
Users can roam within the range of access points
and their wireless device connections are passed
from one access point to the next.
Administrator
The network administrator is the person who
manages the LAN. The administrator's tasks
include ensuring network security, keeping software, hardware, and firmware up-to-date, and
keeping track of network activity. Your router
Administrator is the person in control of access to
your router. The system starts out with all users
as administrators.
Authentication
Authentication refers to the verification of a
transmitted message's integrity.
Beacon Interval
Refers to the interval between packets sent by
routers for the purposes of synchronizing wireless
LANs.
Broadband
Usually refers to Internet connections that provide
faster data transfer than standard dial-up
connections (cable modem, DSL, T-1, etc.)
DDNS
Dynamic DNS (Domain Name System).
DHCP
DHCP (Dynamic Host Configuration Protocol) software automatically assigns IP addresses to client
stations logging onto a TCP/IP network, which
eliminates the need to manually assign permanent
IP addresses.
DHCP Client
The DHCP client list shows all of the computers
attached to your local network. The list shows the
host name of the computer.
DMZ
DMZ (Demilitarized Zone) is a part of an network
that is located between a secure LAN and an
insecure WAN. DMZs provide a way for some
clients to have unrestricted access to the Internet.
DNS
DNS stands for Domain Name System. DNS
converts domain names to the IP addresses that
all machines on the Internet have. It translates
from name to address and from address to name.
Domain Name
The domain name is the "readable" version of an
Internet site address. A typical domain name has
the form "www.somedomainname.com" or
"www.somedomainname.org", etc.
DTIM
DTIM (Delivery Traffic Indication Message) provides client stations with information on the next
opportunity to monitor for broadcast or multicast
messages.
Filter
Filters only allow specified data to be transmitted
or received. For example, the router can filter
specific IP addresses so that users cannot connect to those addresses.
Firewall
Firewalls are methods used to keep networks
secure from intruders and unauthorized access.
Firewalls use filters to prevent unwanted data
from being transmitted to and/or from a local network. Firewalls are typically used to prevent outsiders from accessing your private data
resources and for controlling what outside (WAN)
resources your users can access.
Firmware
Firmware refers to memory chips that retain their
content without electrical power (for example,
BIOS ROM). The router firmware stores all of the
router administration settings.
Fragmentation
Refers to the breaking up of data packets during
transmission.
FTP
FTP (File Transfer Protocol) is used to transfer
files over a TCP/IP network, and is typically used
for transferring large files or uploading the HTML
pages for a web site to the web server.
Glossary
Glossary
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 34
Gateway
Gateways are computers that convert protocols
enabling different networks, applications, and
operating systems to exchange information.
Host Name
The name given to a computer or client station
that acts as a source for information on the
network.
HTTP
HTTP (HyperText Transfer Protocol) is the communications protocol used to connect to servers
on the World Wide Web. HTTP establishes a
connection with a web server and transmits
HTML pages to client browser (for example
Windows
®
IE). HTTP addresses all begin with the
prefix “http://” (for example,
http://www.somedomainname.com).
ICMP
ICMP (Internet Control Message Protocol) is a
TCP/IP protocol used to send error and control
messages over the LAN (for example, it is used
by the router to notify a message sender that the
destination node is not available).
IP
IP (Internet Protocol) is the protocol in the TCP/IP
communications protocol suite that contains a
network address and allows messages to be
routed to a different network or subnet. However,
IP does not ensure delivery of a complete message;
TCP provides the function of ensuring delivery.
IP Address
The IP (Internet Protocol) address refers to the
address of a computer attached to a TCP/IP network. Every client and server station must have a
unique IP address. Clients are assigned either a
permanent address or have one dynamically
assigned to them via DHCP. IP addresses are
written as four sets of numbers separated by
periods (for example, 211.23.181.189).
ISP
An ISP (Internet Service Provider) is an
organization providing Internet access service via
modems, ISDN (Integrated Services Digital
Network), private lines or other means.
LAN
LANs (Local Area Networks) are networks that
serve users within specific geographical areas,
such as your home or in a company building.
LANs consist of a group of computers and related
devices that share a common communication link
(wired and/or wireless). A LAN allows you to
share data and resources among the devices on
the LAN.
LED
LEDs (Light Emitting Diodes) are used as indicator
lights to show the status of devices.
MAC Address
A MAC address is a unique serial number for
hardware adapters, giving the adapter a unique
identification.
Metric
A number that indicates how long a packet takes
to get to its destination.
MTU
MTU (Maximum Transmission/Transfer Unit) is
the largest packet size that can be sent over a
network. Messages larger than the MTU are
divided into smaller packets.
NAT
NAT (Network Address Translation — also known
as IP masquerading) enables a LAN to present
itself to the Internet with one address. NAT converts the address of each LAN node into one IP
address for the Internet (and vice versa). NAT also
provides a certain amount of security by acting as
a firewall by keeping individual IP addresses
hidden from the WAN.
Network Administrator
The network administrator is the person who manages the LAN. The administrator's tasks include
ensuring network security, keeping software, hardware, and firmware up-to-date, and keeping track
of network activity.
NTP
NTP (Network Time Protocol) is used to synchronize the realtime clock in a computer. Internet primary and secondary servers synchronize to
Coordinated Universal Time (UTC).
Open System
Open authentication allows all clients to connect
to the network. After accessing the network, the
client may encrypt data to prevent it from being
easily seen by other users in the immediate area.
Glossary
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 35
Packet
A packet is a portion of data that is transmitted in
network communications. Packets are also
sometimes called frames and datagrams.
Packets contain not only data, but also the
destination IP address.
Passphrase
A Passphrase is used within the WPA-PSK mode
to enable a client to initiate authentication with a
router. If the passphrase is identical to the
passphrase on the router, the router allows the
client to access the network. The passphrase can
be between 8 and 63 characters.
Ping
Ping (Packet Internet Groper) is a utility used to
find out if a particular IP address is present online.
Port
Ports are the physical and/or logical communications pathways in and out of computers and network devices (routers and switches). Most PCs
have serial and parallel ports, which are external
sockets for connecting devices such as printers,
modems, and mice. All network adapters also
use ports to connect to the LAN. Finally, applications that communicate over the Internet also
have ports; these are the endpoints of the application and are given a specific "port number."
PPPoE
PPPoE (Point-to-Point Protocol Over Ethernet) is
a protocol used to communicate between two
computers using a serial interface, such as dialup Internet connections, over an Ethernet link.
Preamble
The Preamble Type refers to the radio preamble,
or header, which is transmitted at the beginning
of a packet of data. The preamble contains information required for the access point and
adapters to transmit information. Since the
Preamble is attached to each packet of data, a
Short Preamble improves data throughput, but it
may cause connection problems with early wireless devices that only support long preambles.
The Long Preamble option ensures compatibility
with these early wireless devices.
Protocol
A protocol is a rule that governs the communication of data.
Radius Server
RADIUS (Remote Authentication Dial-in User
Service) Server must be configured to properly
authenticate client devices for access to the network. The IP address and port number are based
on the configuration of the RADIUS server in your
enterprise network. The shared secret is a password that is used to identify the client in a
RADIUS authenticated network. The shared
secret can be from 22 to 128 characters long.
RIP
RIP (Routing Information Protocol) is a routing
protocol that is integrated in the TCP/IP protocol.
RIP finds a route that is based on the smallest
number of hops between the source of a packet
and its destination.
RTS
RTS (Request To Send) is a signal sent from the
transmitting station to the receiving station
requesting permission to transmit data.
Security Phrase
At least 1 and up to 4 unique Security Phrases
must be set when WEP is "On." The encryption
types for these Security Phrases may be either
Hexadecimal (HEX) or American Standard Code
for Information. Interchange (ASCII). ASCII
Security Phrases are subject to the following
character limitations: 64 Bit encryption: 5 characters; 128 Bit encryption: 13 characters; 152 Bit
encryption: 16 characters.
Server
Servers are typically powerful and fast computers
that store programs and data. The programs and
data are shared by client computers (workstations) on the network.
Shared Key
Shared Key authentication requires the client to
use the same WEP encryption key as that used
by the wireless router. When the client attempts
to connect to the network through the wireless
router the router sends a challenge text message
to the client to authenticate the client. The client
returns the challenge text message encrypted
using the WEP encryption key. The wireless
router decrypts the message using it's WEP key
and if the decrypted message is the same as the
original challenge text message, then it is
assumed that the client has the correct WEP key
and the client is allowed to access the network.
Glossary
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 36
SMTP
SMTP (Simple Mail Transfer Protocol) is the standard Internet e-mail protocol. SMTP is a TCP/IP
protocol defining message format and includes a
message transfer agent that stores and forwards
mail.
SNMP
SNMP (Simple Network Management Protocol) is
a widely used network monitoring and control
protocol. SNMP hardware or software components
transmit network device activity data to the workstation used to oversee the network.
SSID
SSID (Service Set Identifier) is the name designated for a LAN. It serves as a simple security
measure used in Wireless LANs (WLANs). The
SSID is attached to packets sent over WLANs.
This identifier acts as a password when a wireless device attempts communication on the
WLAN. Because an SSID distinguishes WLANS
from each other, routers and wireless devices
trying to connect to a WLAN must use the same
SSID.
Subnet Mask
Subnet Masks (SUBNETwork masks) are used
by IP protocol to direct messages into a specified
network segment (i.e., subnet). A subnet mask is
stored in the client machine, server or router and
is compared with an incoming IP address to
determine whether to accept or reject the packet.
SysLog Server
A SysLog server monitors incoming System log
messages and decodes the messages for logging
purposes.
TCP
(Transmission Control Protocol) is the transport
protocol in TCP/IP that ensures messages over
the network are transmitted accurately and
completely.
TCP/IP
TCP/IP (Transmission Control Protocol/Internet
Protocol) is the main Internet communications
protocol suite. TCP ensures that data is completely sent and received at the other end. The IP
component of TCP/IP provides data routability,
meaning that data packets contain the destination
station and network addresses, enabling TPC/IP
messages to be sent to multiple networks within
the LAN or in the WAN.
Telnet
Telnet is a terminal emulation protocol commonly
used on the Internet and TCP- or IP-based networks. Telnet is used for connecting to remote
devices and running programs. Telnet is a high
level application protocol that uses the TCP/IP
communications protocol.
UDP
(User Datagram Protocol) is a protocol within
TCP/IP that is used to transport information when
accurate delivery isn't necessary (for example,
realtime video and audio where packets can be
dumped since there is no time for retransmitting
the data).
Virtual Servers
Virtual servers are client servers (such as web
servers) that share resources with other virtual
servers (i.e., it is not a dedicated server).
VoIP
(Voice Over Internet Protocol) is a method used
to deliver voice information over the Internet.
VoIP services allow telephone calls using your
PC or LAN.
WEP
WEP (Wired Equivalent Privacy) is the most common security protocol for wireless LANs, providing the "equivalent" security available in hardwired networks.
Glossary
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 37
Wireless LAN (WLAN)
Wireless LANs are local area networks that use
wireless communications for transmitting data.
Transmissions are usually in the 2.4 GHz band.
WLAN devices do not need to be lined up for
communications like infrared devices. WLAN
devices use routers which are connected to the
wired LAN and provide connectivity to the LAN.
The radio frequency of WLAN devices is strong
enough to be transmitted through non-metal walls
and objects, and can cover an area up to a
thousand feet. Laptops and notebooks use wireless LAN PCMCIA cards while PCs use plug-in
cards to access the WLAN.
WAN
WAN (Wide Area Network) is a communications
network that covers a wide geographic area such
as a country (contrasted with a LAN, which
covers a small area such as a company building).
WPA
WPA (WiFi Protected Access) is an enhanced
security specification to increase the level of
access control and data protection for wireless
data networks. WPA authentication requires that
an authentication server authenticate all client
adapters before being allowed access to a wireless network. This authentication mode is
designed for enterprise applications requiring
very high levels of security.
WPA-PSK
Authentication mode enables the user to
configure a type of client authentication used for
acquiring access to the wireless network. The
WPA-PSK mode has been designed for those
environments where high data security is desired,
but there is no authentication server. The client
initiates authentication by sending a password
called a passphrase to the wireless router. If the
passphrase is identical to the passphrase on the
wireless router, the wireless router allows the
client to access the network. The passphrase can
be between 8 and 63 characters.
Technical Specifications
AT&T Plug&Share™ Wireless Notebook Adapter 108 Mbps 6750G 38
Standards
• IEEE 802.11
• IEEE 802.11b
• IEEE 802.11g
Operating Systems
• Windows
®
XP, 2000, Me, 98 SE
Bus Type
• 32-bit Cardbus Type II
Wireless Data Rates (Mbps)
With Automatic Fallback
• 108, 54, 48, 36, 24, 18, 12, 11, 9, 6, 5.5, 2, 1
Encryption
• WEP 64/128/152-bit RC4
•WPA
• WPA-PSK
• TKIP
Media Access Control
• CSMA/CA with ACK
Frequency Range
• 2.4GHz to 2.472GHz
Modulation Technology
• OFDM (Orthogonal Frequency Division
Multiplexing)
Modulation Techniques
• Barker (1 Mbps)
• Barker (2 Mbps)
• CCK (5.5 Mbps)
• OFDM (6 Mbps)
• OFDM (9 Mbps)
• CCK (11 Mbps)
• OFDM (12 Mbps)
• OFDM (18 Mbps)
• OFDM (24 Mbps)
• OFDM (36 Mbps)
• OFDM (48 Mbps)
• OFDM (54 Mbps)
• OFDM (108 Mbps)
Operating Range
• Indoors: Up to 300 feet (100m)
• Outdoors: Up to 980 feet (300m)
Power Management
• Automatic to reduce battery usage
Power Consumption
• Receive mode = 185mA
• Doze mode = 9mA
• Transmit mode = 285mA
Transmitter Output Power
• 15dBm ± 2dB
Internal Antenna Type
• Diversity
Over-Driving Levels
• Tolerates up to +17dBm at the Antenna
LEDs
• Power
• TX/RX
Operating Climate Range
• Temperature: 32° to 131°F (0° to 55°C)
• Humidity: 32% to 90% relative humidity
Storage Climate Range
• Temperature: -40° to 150°F (-40° to 66°C)
• Humidity: 15% to 90% relative humidity
Safety & Emissions
• FCC
Technical Specifications
Care and maintenance
Always unplug this product before cleaning. Use a damp cloth to clean the exterior housing only. Do not
use liquid cleaners or aerosol cleaners.
Periodically visit our web site to check for free driver upgrades that can help maximize the performance
and reliability of your wireless network:
www.plugandshare.att.com
For customer service, please call
1-877-800-5400 (USA) • 1-866-669-4730 (Canada)
or visit
www.plugandshare.att.com
for product information and driver upgrades as they become available
Copyright © 2004 Advanced American Telephones. All Rights Reserved.
AT&T and the Globe Design are trademarks of AT&T Corp., licensed to Advanced
American Telephones. All marks are trademarks of their respective corporations.
PMGU006750G-01
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