Wireless, local area network, and modem. HP G62-340, G62-372US, G62-b00 Notebook PC series, PRESARIO CQ62-200SL, CQ62-410US, PRESARIO CQ62-a10ER, G62-219WM, CQ62-238DX

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Wireless, local area network, and modem. HP G62-340, G62-372US, G62-b00 Notebook PC series, PRESARIO CQ62-200SL, CQ62-410US, PRESARIO CQ62-a10ER, G62-219WM, CQ62-238DX | Manualzz

2 Wireless, local area network, and modem

Using wireless devices

Wireless technology transfers data across radio waves instead of wires. Your computer may be equipped with one or more of the following wireless devices:

Wireless local area network (WLAN) device—Connects the computer to wireless local area networks (commonly referred to as Wi-Fi networks, wireless LANs, or WLANs) in corporate offices, your home, and public places such as airports, restaurants, coffee shops, hotels, and universities.

In a WLAN, each mobile wireless device communicates with a wireless router or a wireless access point.

Bluetooth® device (select models only)—Creates a personal area network (PAN) to connect to other Bluetooth-enabled devices such as computers, phones, printers, headsets, speakers, and cameras. In a PAN, each device communicates directly with other devices, and devices must be relatively close together, typically within 10 meters (approximately 33 feet) of each other.

Computers with WLAN devices support one or more of the following IEEE industry standards:

802.11b, the first popular standard, supports data rates of up to 11 Mbps and operates at a frequency of 2.4 GHz.

802.11g supports data rates of up to 54 Mbps and operates at a frequency of 2.4 GHz. An 802.11g

WLAN device is backward compatible with 802.11b devices, so they can operate on the same network.

802.11a supports data rates of up to 54 Mbps and operates at a frequency of 5 GHz.

NOTE:

802.11a is not compatible with 802.11b and 802.11g.

802.11n supports data rates of up to 450 Mbps and may operate at 2.4 GHz or 5 GHz, making it backward compatible with 802.11a, b, and g.

For more information on wireless technology, refer to the information and Web site links provided in

Help and Support.

Using wireless devices 13

Identifying wireless and network status icons

Icon Name

Wireless (connected)

Wireless (disconnected)

Description

Identifies the location of the wireless light and the wireless action key ( f12 ) on the computer. Also identifies the HP Wireless Assistant software on the computer and indicates that one or more of the wireless devices are on.

Identifies the HP Wireless Assistant software on the computer and indicates that all of the wireless devices are off.

Wired network (connected) Indicates that one or more network drivers are installed, and one or more network devices are connected to a wired network.

Wired network (disabled/ disconnected)

Network (connected)

Network (disconnected)

Network (disabled/ disconnected)

Indicates that one or more network drivers are installed, but no network devices are connected (or all network devices are disabled in Windows Control Panel).

Indicates that one or more network drivers are installed, and one or more network devices are connected to a wireless network.

Indicates that one or more network drivers are installed and wireless connections are available, but no network devices are connected to a wireless network.

Indicates that one or more network drivers are installed, but no wireless connections are available (or all wireless network devices are turned off by the wireless action key [ f12 ] or HP Wireless

Assistant).

Using the wireless controls

You can control the wireless devices in your computer using these features:

The wireless action key ( f12 )

HP Wireless Assistant software

Operating system controls

Using the wireless action key

The computer has a wireless action key ( f12 ), one or more wireless devices, and a wireless light. All of the wireless devices on your computer are enabled at the factory, so the wireless light is on (white) when you turn on the computer.

The wireless light indicates the overall power state of your wireless devices, not the status of individual devices. If the wireless light is white, at least one wireless device is on. If the wireless light is amber, all wireless devices are off.

Because the wireless devices are enabled at the factory, you can use the wireless action key ( f12 ) to turn on or turn off all of the wireless devices simultaneously. Individual wireless devices can be controlled through HP Wireless Assistant.

14 Chapter 2 Wireless, local area network, and modem

Using HP Wireless Assistant

A wireless device can be turned on or off using HP Wireless Assistant. If a wireless device is disabled in Setup Utility, it must be reenabled in Setup Utility before it can be turned on or off using Wireless

Assistant.

NOTE:

Enabling or turning on a wireless device does not automatically connect the computer to a network or a Bluetooth-enabled device.

To view the state of the wireless devices, click the Show hidden icons icon, the arrow at the left of the notification area, and then position the mouse pointer over the wireless icon.

If the wireless icon is not displayed in the notification area, complete the following steps to change

Wireless Assistant properties:

1.

Select Start > Control Panel > Hardware and Sound > Windows Mobility Center.

2.

Click the wireless icon in the Wireless Assistant tile, which is located in the bottom row of Windows

Mobility Center. Wireless Assistant opens.

3.

Click Properties.

4.

Select the check box next to HP Wireless Assistant icon in notification area.

5.

Click Apply.

6.

Click Close.

For more information, refer to the Wireless Assistant software Help:

1.

Open Wireless Assistant by clicking the wireless icon in Windows Mobility Center.

2.

Click the Help button.

Using operating system controls

Some operating systems also offer a way to manage integrated wireless devices and the wireless connection. For example, Windows provides the Network and Sharing Center that allows you to set up a connection or network, connect to a network, manage wireless networks, and diagnose and repair network problems.

To access the Network and Sharing Center, select Start > Control Panel > Network and Internet >

Network and Sharing Center.

For more information, select Start > Help and Support.

Using wireless devices 15

Using a WLAN

With a WLAN device, you can access a wireless local area network (WLAN), which is composed of other computers and accessories that are linked by a wireless router or a wireless access point.

NOTE:

The terms wireless router and wireless access point are often used interchangeably.

A large-scale WLAN, such as a corporate or public WLAN, typically uses wireless access points that can accommodate a large number of computers and accessories and can separate critical network functions.

A home or small office WLAN typically uses a wireless router, which allows several wireless and wired computers to share an Internet connection, a printer, and files without requiring additional pieces of hardware or software.

To use the WLAN device in your computer, you must connect to a WLAN infrastructure (provided through a service provider or a public or corporate network).

Setting up a WLAN

To set up a WLAN and connect to the Internet, you need the following equipment:

● A broadband modem (either DSL or cable) (1) and high-speed Internet service purchased from an

Internet service provider (ISP)

A wireless router (purchased separately) (2)

● The wireless computer (3)

The illustration below shows an example of a wireless network installation that is connected to the

Internet.

As your network grows, additional wireless and wired computers can be connected to the network to access the Internet.

For help in setting up your WLAN, refer to the information provided by your router manufacturer or your

ISP.

16 Chapter 2 Wireless, local area network, and modem

Protecting your WLAN

Because the WLAN standard was designed with only limited security capabilities—basically to foil casual eavesdropping rather than more powerful forms of attack—it is essential to understand that WLANs are vulnerable to well-known and well-documented security weaknesses.

WLANs in public areas, or “hotspots,” like coffee shops and airports may not provide any security. New technologies are being developed by wireless manufacturers and hotspot service providers that make the public environment more secure and anonymous. If you are concerned about the security of your computer in a hotspot, limit your network activities to noncritical e-mail and basic Internet surfing.

When you set up a WLAN or access an existing WLAN, always enable security features to protect your network from unauthorized access. The common security levels are Wi-Fi Protected Access (WPA)-

Personal and Wired Equivalent Privacy (WEP). Because wireless radio signals travel outside the network, other WLAN devices can pick up unprotected signals and either connect to your network

(uninvited) or capture information being sent across it. However, you can take precautions to protect your WLAN:

Use a wireless transmitter with built-in security

Many wireless base stations, gateways, or routers provide built-in security features such as wireless security protocols and firewalls. With the correct wireless transmitter, you can protect your network from the most common wireless security risks.

Work behind a firewall

A firewall is a barrier that checks both data and requests for data that are sent to your network, and discards any suspicious items. Firewalls are available in many varieties, both software and hardware. Some networks use a combination of both types.

Use wireless encryption

A variety of sophisticated encryption protocols are available for your WLAN:

Wired Equivalent Privacy (WEP) is a wireless security protocol that encodes or encrypts all network data before it is transmitted using a WEP key. Usually, you can allow the network to assign the WEP key. Alternatively, you can set up your own key, generate a different key, or choose other advanced options. Without the correct key, others will not be able to use the

WLAN.

WPA (Wi-Fi Protected Access), like WEP, uses security settings to encrypt and decrypt data that is transmitted over the network. However, instead of using one static security key for encryptions as WEP does, WPA uses “temporal key integrity protocol” (TKIP) to dynamically generate a new key for every packet. It also generates different sets of keys for each computer on the network.

Using a WLAN 17

Connecting to a WLAN

To connect to the WLAN, follow these steps:

1.

Be sure that the WLAN device is on (the wireless light is white). If the wireless light is amber, press the wireless action key ( f12 ).

2.

Click the network icon in the notification area, at the far right of the taskbar.

3.

Select your WLAN from the list.

4.

Click Connect.

If the network is a security-enabled WLAN, you are prompted to enter a network security key, which is a security code. Enter the code, and then click OK to complete the connection.

NOTE:

If no WLANs are listed, you are out of range of a wireless router or access point.

NOTE:

If you do not see the network you want to connect to, click Open Network and Sharing

Center, and then click Set up a new connection or network. A list of options is displayed. You can choose to manually search for and connect to a network or to create a new network connection.

After the connection is made, place the mouse pointer over the network icon in the notification area, at the far right of the taskbar, to verify the name and status of the connection.

NOTE:

The functional range (how far your wireless signals travel) depends on WLAN implementation, router manufacturer, and interference from other electronic devices or structural barriers such as walls and floors.

More information about using a WLAN is available through the following resources:

● Information from your ISP and the user guides included with your wireless router and other WLAN equipment

Information and Web site links provided in Help and Support

For a list of public WLANs near you, contact your ISP or search the web. Web sites that list public WLANs include Cisco Internet Mobile Office Wireless Locations, Hotspotlist, and Geektools. Check with each public WLAN location for cost and connection requirements.

Roaming to another network

When you move your computer within range of another WLAN, Windows attempts to connect to that network. If the attempt is successful, your computer is automatically connected to the new network. If

Windows does not recognize the new network, follow the same procedure you used initially to connect to your WLAN.

18 Chapter 2 Wireless, local area network, and modem

Using Bluetooth wireless devices (select models only)

A Bluetooth device provides short-range wireless communications that replace the physical cable connections that traditionally link electronic devices such as the following:

Computers (desktop, notebook, PDA)

Phones (cellular, cordless, smart phone)

Imaging devices (printer, camera)

Audio devices (headset, speakers)

Bluetooth devices provide peer-to-peer capability that allows you to set up a personal area network

(PAN) of Bluetooth devices. For information on configuring and using Bluetooth devices, refer to the

Bluetooth software Help.

Bluetooth and Internet Connection Sharing (ICS)

HP does not recommend setting up one computer with Bluetooth as a host and using it as a gateway through which other computers may connect to the Internet. When two or more computers are connected using Bluetooth, and Internet Connection Sharing (ICS) is enabled on one of the computers, the other computers may not be able to connect to the Internet using the Bluetooth network.

The strength of Bluetooth is in synchronizing information transfers between your computer and wireless devices including cellular phones, printers, cameras, and PDAs. The inability to consistently connect two or more computers to share the Internet through Bluetooth is a limitation of Bluetooth and the

Windows operating system.

Using Bluetooth wireless devices (select models only) 19

Troubleshooting wireless connection problems

Some possible causes for wireless connection problems include the following:

Network configuration (SSID or security) has been changed.

Wireless device is not installed correctly or has been disabled.

Wireless device or router hardware has failed.

● Wireless device encountered interference from other devices.

NOTE:

Wireless networking devices are included with select computer models only. If wireless networking is not listed in the feature list on the side of the original computer package, you may add wireless networking capability to the computer by purchasing a wireless networking device.

Before working your way through the sequence of possible solutions to your network connection problem, be sure that device drivers are installed for all wireless devices.

Use the procedures in this chapter to diagnose and repair a computer that does not connect to the network you want to use.

Cannot connect to a WLAN

If you have a problem connecting to a WLAN, confirm that the integrated WLAN device is properly installed on your computer:

NOTE:

Windows includes the User Account Control feature to improve the security of your computer.

You may be prompted for your permission or password for tasks such as installing software, running utilities, or changing Windows settings. Refer to Help and Support for more information.

1.

Select Start > Control Panel > System and Security.

2.

In the System area, click Device Manager.

3.

Click the arrow next to Network adapters to expand the list and show all adapters.

4.

Identify the WLAN device from the Network adapters list. The listing for a WLAN device may include the term wireless, wireless LAN, WLAN, Wi-Fi, or 802.11.

If no WLAN device is listed, either your computer does not have an integrated WLAN device, or the driver for the WLAN device is not properly installed.

For more information on troubleshooting WLANs, refer to the Web site links provided in Help and

Support.

20 Chapter 2 Wireless, local area network, and modem

Cannot connect to a preferred network

Windows can automatically repair a corrupted WLAN connection:

If there is a network icon in the notification area, at the far right of the taskbar, right-click the icon, and then click Troubleshoot problems.

Windows resets your network device and attempts to reconnect to one of the preferred networks.

If there is no network icon in the notification area, follow these steps:

1.

Select Start > Control Panel > Network and Internet > Network and Sharing Center.

2.

Click Troubleshoot problems, and then select the network you wish to repair.

Network icon is not displayed

If the network icon is not displayed in the notification area after you configure the WLAN, the software driver is either missing or corrupted. A Windows “Device not Found” error message may also be displayed. The driver must be reinstalled.

If the WLAN device you are using was purchased separately, consult the manufacturer's Web site for the latest software.

To get the latest version of the WLAN device software for your computer, follow these steps:

1.

Open your web browser, and then go to http://www.hp.com/support .

2.

Select your country or region.

3.

Click the option for software and driver downloads, and then enter your computer model number in the search box.

4.

Press enter , and then follow the on-screen instructions.

NOTE:

If the WLAN device you are using was purchased separately, consult the manufacturer's Web site for the latest software.

Current network security codes are unavailable

If you are prompted for a network key or a name (SSID) when connecting to a WLAN, the network is protected by security. You must have the current codes to make a connection on a secure network. The

SSID and network key are alphanumeric codes that you enter into your computer to identify your computer to the network.

● For a network connected to your personal wireless router, review the router user guide for instructions on setting up the same codes on both the router and the WLAN device.

For a private network, such as a network in an office or at a public Internet chat room, contact the network administrator to obtain the codes, and then enter the codes when prompted to do so.

Some networks change the SSID or network keys used in their routers or access points on a regular basis to improve security. You must change the corresponding code in your computer accordingly.

Troubleshooting wireless connection problems 21

If you are provided with new wireless network keys and SSID for a network, and if you have previously connected to that network, follow the steps below to connect to the network:

1.

Select Start > Control Panel > Network and Internet > Network and Sharing Center.

2.

In the left panel, click Manage wireless networks.

A list showing the available WLANs is displayed. If you are in a hotspot where several WLANs are active, several will be displayed.

3.

Select the network in the list, right-click the network, and then click Properties.

NOTE:

If the network you want is not listed, check with the network administrator to be sure that the router or access point is operating.

4.

Click the Security tab and enter the correct wireless encryption data into the Network security

key box.

5.

Click OK to save these settings.

WLAN connection is very weak

If the connection is very weak, or if your computer cannot make a connection to a WLAN, minimize interference from other devices, as follows:

Move your computer closer to the wireless router or access point.

● Temporarily disconnect devices such as a microwave, cordless phone, or cellular phone to be sure that other wireless devices are not interfering.

If the connection does not improve, try forcing the device to reestablish all connection values:

1.

Select Start > Control Panel > Network and Internet > Network and Sharing Center.

2.

In the left panel, click Manage wireless networks.

A list showing the available WLANs is displayed. If you are in a hotspot where several WLANs are active, several will be displayed.

3.

Click a network, and then click Remove.

Cannot connect to the wireless router

If you are trying to connect to the wireless router and are unsuccessful, reset the wireless router by removing power from the router for 10 to 15 seconds.

If the computer still cannot make a connection to a WLAN, restart the wireless router. For details, refer to the router manufacturer's instructions.

22 Chapter 2 Wireless, local area network, and modem

Using the modem (select models only)

The modem must be connected to an analog telephone line using a 6-pin, RJ-11 modem cable (included with select models only). In some countries, a country-specific modem cable adapter (included with select models only) is also required. Jacks for digital PBX systems may resemble analog telephone jacks, but they are not compatible with the modem.

WARNING!

Connecting the internal analog modem to a digital line can permanently damage the modem. Immediately disconnect the modem cable if you accidentally connect it to a digital line.

If the modem cable contains noise suppression circuitry (1), which prevents interference from TV and radio reception, orient the circuitry end (2) of the cable toward the computer.

Connecting a modem cable

WARNING!

To reduce the risk of electric shock, fire, or damage to the equipment, do not plug a modem cable (included with select models only) or telephone cable into the RJ-45 (network) jack.

To connect a modem cable:

1.

Plug the modem cable into the modem jack (1) on the computer.

2.

Plug the modem cable into the RJ-11 telephone wall jack (2).

Using the modem (select models only) 23

Connecting a country-specific modem cable adapter

Telephone jacks vary by country. To use the modem and the modem cable (included with select models only) outside the country in which you purchased the computer, you must obtain a country-specific modem cable adapter (included with select models only).

To connect the modem to an analog telephone line that does not have an RJ-11 telephone jack, follow these steps:

1.

Plug the modem cable into the modem jack (1) on the computer.

2.

Plug the modem cable into the country-specific modem cable adapter (2).

3.

Plug the country-specific modem cable adapter (3) into the telephone wall jack.

Selecting a location setting

Viewing the current location selection

To view the current location setting for the modem, follow these steps:

1.

Select Start > Control Panel.

2.

Click Clock, Language, and Region.

3.

Click Region and Language.

4.

Click the Location tab to display your location.

24 Chapter 2 Wireless, local area network, and modem

Adding new locations when traveling

By default, the only location setting available to the modem is a location setting for the country in which you purchased the computer. As you travel to different countries, set the internal modem to a location setting that meets the operating standards of the country in which you are using the modem.

As you add new location settings, they are saved by the computer so that you can switch among settings at any time. You can add multiple location settings for any country.

CAUTION:

To prevent losing your home country settings, do not delete your current modem country settings. To enable modem use in other countries while preserving your home country configuration, add a new configuration for each location in which you will use the modem.

CAUTION:

To prevent configuring the modem in a way that violates the telecommunications regulations and laws of the country you are visiting, select the country in which the computer is located.

The modem may not function properly if the correct country selection is not made.

To add a location setting for the modem, follow these steps:

1.

Select Start > Devices and Printers.

2.

Right-click the device that represents your computer, and then click Modem settings.

NOTE:

You must set up an initial (current) location area code before you can view the Dialing

Rules tab. If you do not have a location set up, you will be prompted to enter the location when you click Modem settings.

3.

Click the Dialing Rules tab.

4.

Click New. The New Location window is displayed.

5.

In the Location name box, enter a name such as “home” or “work” for the new location setting.

6.

Select a country or region from the Country/region drop-down list. (If you select a country or region that is not supported by the modem, the Country/region selection for USA or UK is displayed by default.)

7.

Enter the area code, a carrier code (if necessary), and the number to access an outside line (if necessary).

8.

Next to Dial using, click Tone or Pulse.

9.

Click OK to save your new location setting. The Phone and Modem window is displayed.

10.

Do one of the following:

To set your new location setting as the current location, click OK.

To select another location setting as the current location setting, select your preference from the settings in the Location list, and then click OK.

NOTE:

You can use the preceding procedure to add location settings for places within your own country as well as in other countries. For example, you could add a setting named “Work” that includes dialing rules for accessing an outside line.

Using the modem (select models only) 25

Solving travel connection problems

If you experience modem connection problems when using the computer outside of the country in which you purchased it, try the following suggestions.

Check the telephone line type.

The modem requires an analog, not a digital, telephone line. A line described as a PBX line is usually a digital line. A telephone line described as a data line, fax machine line, modem line, or standard telephone line is usually an analog line.

Check for pulse or tone dialing.

An analog telephone line supports one of two dialing modes: pulse dialing or tone dialing. These dialing mode options are selected in the Phone and Modem settings. The dialing mode option selected must match the dialing mode supported by the telephone line in your location.

To determine the dialing mode supported by a telephone line, dial a few digits on the telephone, and then listen for clicks (pulses) or tones. Clicks indicate that the telephone line supports pulse dialing. Tones indicate that the telephone line supports tone dialing.

To change the dialing mode in your current modem location setting, follow these steps:

1.

Select Start > Devices and Printers.

2.

Right-click the device that represents your computer, and then click Modem settings.

3.

Click the Dialing Rules tab.

4.

Select your modem location setting.

5.

Click Edit.

6.

Click either Tone or Pulse.

7.

Click OK twice.

Check the telephone number you are dialing and the response of the remote modem.

Dial a telephone number, make sure there is a response from the remote modem, and then hang up.

Set the modem to ignore dial tones.

If the modem receives a dial tone it does not recognize, it does not dial and displays a “No Dial

Tone” error message.

To set the modem to ignore all dial tones before dialing, follow these steps:

1.

Select Start > Devices and Printers.

2.

Right-click the device that represents your computer, and then click Modem settings.

3.

Click the Modems tab.

4.

Click the listing for the modem.

5.

Click Properties.

6.

Click Modem.

26 Chapter 2 Wireless, local area network, and modem

7.

Clear the check box for Wait for dial tone before dialing.

8.

Click OK twice.

Connecting to a local area network

Connecting to a local area network (LAN) requires an 8-pin, RJ-45 network cable (purchased separately). If the network cable contains noise suppression circuitry (1), which prevents interference from TV and radio reception, orient the circuitry end of the cable (2) toward the computer.

To connect the network cable:

1.

Plug the network cable into the network jack (1) on the computer.

2.

Plug the other end of the cable into a network wall jack (2).

WARNING!

To reduce the risk of electric shock, fire, or damage to the equipment, do not plug a modem or telephone cable into the RJ-45 (network) jack.

Connecting to a local area network 27

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Key Features

  • Built-in wireless capabilities for easy Internet access
  • Comfortable keyboard and large touchpad for easy typing and navigation
  • Bright display for clear viewing of documents, web pages, and movies
  • Bluetooth wireless technology for connecting to other devices
  • Integrated webcam for video conferencing
  • Long battery life for extended use on the go

Related manuals

Frequently Answers and Questions

How do I connect to a wireless network?
To connect to a wireless network, first make sure that the wireless switch is turned on. Then, click on the network icon in the taskbar and select the network you want to connect to. Enter the network security key if prompted.
How do I use the webcam?
To use the webcam, first make sure that it is turned on. Then, open a video conferencing application such as Skype or Google Hangouts. Select the webcam as the video input device and start your video call.
How do I extend the battery life of my laptop?
To extend the battery life of your laptop, you can do the following: - Adjust the power settings to conserve battery power. - Close any unnecessary programs or applications. - Reduce the screen brightness. - Turn off the wireless switch when not in use.
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