Sony PCWA-A320 Manuale utente
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Troubleshooting Guide
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Trademarks
●Sony, VAIO, the logo, the logo and the Eco Info
logo are trademarks of Sony Corporation.
●Microsoft and Windows are registered trademarks of Microsoft
Corporation in the United States and/or other countries.
●In this manual, Microsoft®Windows®XP Home Edition and Microsoft®
Windows®XP Professional are referred to as Windows XP.
●All other names of systems, products and services are trademarks of their
respective owners. In this manual the TM or ®marks are not specified.
™
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Introduction
This document provides solutions to common problems encountered with
the Wireless LAN Access Point.
Please refer to this guide before contacting Sony’s customer
service department.
Case 1 - I cannot find the Access Point with the Access
Point Scan Utility
Did you wait long enough?
The scanning process may take some time. After clicking Scan, wait at least
30 seconds before checking the results.
Can you see the IP address of the computer?
With the computer setting Obtain IP address automatically enabled,
perform the following steps. For information on how to set the IP address
of the computer, see Windows Help.
Windows Me
1From the Start menu, select Run.
2Enter winipcfg in the Run dialog box and click OK.
3From the list in the IP Setup dialog box, select the Wireless LAN interface
that you are using (PC Card, computer internal wireless LAN, etc).
4Make sure an IP address is shown in the IP address field.
5If the IP address is 0.0.0.0 or an address starting with 169.254 is displayed,
click Release and then Renew.
●If an IP address with 169.254 is displayed, a suitable IP address was not obtained with
Obtain IP address automatically and your Windows operating system assigned an
address to the Wireless LAN PC Card. In this condition, a correct network connection
is not possible. Perform the setup again as described in the Quick Start Guide.
Windows 2000 and Windows XP
1Click Start, point to Programs (All programs in Windows XP) and then
Accessories and click Command prompt.
2In the command prompt window, enter ipconfig/all and press <Enter>.
3Check the IP address setting information of the Wireless LAN interface
that you are using (PC Card, computer internal Wireless LAN, etc).
The description field shows the name of the Wireless LAN interface.
4If the IP address is 0.0.0.0 or an address starting with 169.254 is displayed,
enter ipconfig/renew and press <Enter>.
A new IP address is assigned.
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Is the Access Point on?
When the Access Point is on, the Status indicator flashes slowly.
Is the Windows XP Internet Connection Firewall
function enabled?
If the Internet Connection Firewall function is enabled, communication may
not be possible. Follow the procedure below to check or change the settings:
1. Click Start and then Control Panel.
2. In Control Panel, double-click Network Connections.
If Network Connections does not appear, click Switch to classic view.
3. In the Network Connections window, right-click the icon of the wireless
network that you want to use and click Properties.
4. Click the Advanced tab and (if selected) deselect the Protect my
computer and network by limiting or preventing access to this
computer from the Internet check box.
5. Click OK.
★Refer to the Windows XP Help for details about the Internet Connection Firewall function.
●Make sure that you take appropriate security measures when the Internet Connection
Firewall function is disabled. Except when configuring the Access Point, it is strongly
recommended that you enable the Internet Connection Firewall function at all times.
If the problem still persists after verifying all the above, proceed to Case 2.
Case 2 - There is no communication between the computer
and the Access Point
Is the Wireless LAN interface (PC Card, Wireless LAN Converter,
etc) correctly installed. Does you computer detect the interface?
Proceed as follows to verify:
1Make sure that the Wireless LAN PC Card or Wireless LAN Converter
is correctly installed on your computer.
If they are not, refer to the appropriate documentation and
reinstall them.
2If the Wireless LAN PC Card or Wireless LAN Converter is correctly installed
on your desktop, right-click My Computer and then click Properties
from the shortcut menu that appears.
Under Windows XP, you can right-click My Computer on the Start menu
and then click Properties on the shortcut menu that appears.
3On the Hardware tab, click Device Manager.
Under Windows Me, click the Device Manager tab.
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4Double-click Network adapters and verify whether the network
interface connected to the Wireless LAN PC Card or Ethernet card
appears in the list.
5If the network interface connected to the Wireless LAN PC Card
or Wireless LAN Converter does not appear in the list, refer to
the appropriate documentation for details about how to make
your computer detect the interface.
Did you see the IP address of the computer?
Refer to Case 1 to obtain the IP address.
If an IP address starting with 169.254 is displayed, a suitable IP address
was not obtained with Obtain IP address automatically and Windows
has automatically assigned an address to the LAN PC Card. In this condition,
a correct network connection is not possible. Perform the setup again as
described in the Quick Start Guide.
Is your computer properly configured for
wireless communication?
When using the Access Point functions under factory default
settings, configure the computer as follows (Windows XP and
the Wireless LAN PC Card):
1Click Start and then Control Panel.
2In Control Panel, double-click Network Connections.
If Network Connections does not appear, click Switch to classic view.
3In the Network Connections window, right-click the icon of the wireless
network to which you want to connect and click View Available
Wireless Networks.
4In the Connect to Wireless Network dialog box, select the Access Point
from Available Wireless Networks and click Connect. When using
the Access Point functions under factory default settings, check the
6-character identifier printed on the label inside the rear cover of the
wireless unit.
Are the Network Name (SSID) and Data Encryption (WEP)
settings configured correctly?
To connect to the Access Point, the Network Name (SSID) and Data Encryption
(WEP) settings must be the same on the computer and the Access Point.
When using the Access Point functions under factory default settings, use the
settings listed above. With Windows Me and Windows 2000, verify the Access
Point Network Name (SSID) and Data Encryption (WEP) settings of the
Wireless LAN PC Card as described in its documentation.
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With Windows XP and the Wireless LAN PC Card, proceed as follows to verify
the settings:
1Open the Connect to Wireless Network dialog box.
2Select the Network Name (SSID) of the Access Point from Available
Wireless Networks.
3If data encryption is enabled for the Access Point, enter the correct
Encryption Key (network key) in the Data Encryption (WEP) field.
4Click Connect.
If the connection is not established, reset the Access Point functions to the
factory default settings as described in Case 6 and then set up the Access
Point functions again as described in the Quick Start Guide.
Is the wireless network connection acting as a network bridge?
(Windows XP only)
1Click Start, point to Connect To and click Show all connections.
2Confirm that the wireless network connection in question is not acting
as a network bridge.
3If the wireless network connection is configured as a network bridge,
right-click the wireless network connection icon and click Remove
from bridge.
Case 3 - I cannot display the Access Point Setup Page
Is the Web browser of the computer used for the Access Point setup
configured to use a proxy server?
Make sure that no proxy setting is enabled for the IP address of
the Access Point.
While the proxy server setting is disabled, it may not be possible to display
other pages except for the Access Point Setup Page.
Example 1: Using Microsoft Internet Explorer
1On the Tools menu, click Internet Options.
The Internet Options dialog box appears.
2On the Connection tab, click LAN Settings.
The Local Area Network (LAN) Settings dialog box appears.
If there are dial-up profiles in the Dial-up box, make sure that you
select the Never dial a connection check box.
3If the Use a proxy server for your LAN check box is selected (these
settings do not apply to dial-up or VPN connections), deselect the check
box and click OK.
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4When the Access Point setup is complete, return the proxy setting to its
original condition.
Example 2 : Using Netscape
1Start the web browser on the computer used for the Access Point setup.
2On the Edit menu, click Preferences.
3In Category, click Advanced and click the Proxies button.
4Select Direct connection to the Internet and click OK.
5When the Access Point setup is complete, return the proxy setting to its
original condition.
Case 4 - I do not know which Access Point to select
Verify the MAC address indicated on the label inside the back cover of the
Wireless Unit. In the Access Point list of the Access Point Scan Utility, select the
Access Point with the same MAC address.
Case 5 - I can no longer connect after the Access Point
settings had been changed
I forgot the Access Point settings
If you forgot the settings of the Access Point, reset the Access Point to its
factory defaults as described in Case 6 and then perform the setup again as
described in the Quick Start Guide.
The Network Name (SSID) or Encryption (WEP) key was changed
With Windows Me or Windows 2000, refer to the instruction manual provided
with the wireless LAN PC Card you are using and change the computer
settings so that they match the Access Point settings.
With Windows XP and the Wireless LAN PC Card, follow the procedure below
to change the computer settings:
1Perform steps 1 and 2 of Case 2, section Is your computer properly
configured for wireless communication?
2Click Advanced.
3From Available Networks, select the same name that you set for
the Access Point Network Name (SSID) and click Configure.
If the network has the same name of one appearing in Preferred
networks, select the network from the list in Preferred networks
and click Remove to remove it from the list.
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