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Troubleshooting wireless connection problems, Cannot connect to a WLAN

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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

Section	Page
Features	11
Identifying hardware	11
Components	12
Top components	12
TouchPad	12
Lights	13
Button and speakers	14
Keys	15
Right-side components	16
Left-side components	17
Bottom components	18
Display components	19
Wireless antennas	19
Additional hardware components	21
Labels	22
Wireless, local area network, and modem	23
Using wireless devices	23
Identifying wireless and network status icons	24
Using the wireless controls	24
Using the wireless action key	24
Using HP Wireless Assistant	25
Using operating system controls	25
Using a WLAN	26
Setting up a WLAN	26
Protecting your WLAN	27
Connecting to a WLAN	28
Roaming to another network	28
Using Bluetooth wireless devices (select models only)	29
Bluetooth and Internet Connection Sharing (ICS)	29
Troubleshooting wireless connection problems	30
Cannot connect to a WLAN	30
Cannot connect to a preferred network	31
Network icon is not displayed	31
Current network security codes are unavailable	31
WLAN connection is very weak	32
Cannot connect to the wireless router	32
Using the modem (select models only)	33
Connecting a modem cable	33
Connecting a country-specific modem cable adapter	34
Selecting a location setting	34
Viewing the current location selection	34
Adding new locations when traveling	35
Solving travel connection problems	36
Connecting to a local area network	37
Pointing devices and keyboard	38
Using the TouchPad	38
Turning the TouchPad on and off	39
Using TouchPad gestures	39
Scrolling	40
Pinching	40
Rotating	41
Setting pointing device preferences	41
Using the keyboard	42
Cleaning the TouchPad and keyboard	44
Multimedia	45
Multimedia features	45
Identifying your multimedia components	46
Adjusting the volume	47
Using the media activity functions	48
Using the media activity action keys	48
Multimedia software	49
Using CyberLink PowerDVD software	49
Using other preinstalled multimedia software	49
Installing multimedia software from a disc	49
Audio	50
Connecting external audio devices	50
Checking your audio functions	50
Video	51
Connecting an HDMI device (select models only)	52
Configuring audio for HDMI (select models only)	53
Optical drive	53
Webcam (select models only)	54
Webcam tips	54
Adjusting webcam properties	54
Power management	56
Setting power options	56
Using power-saving states	56
Initiating and exiting Sleep	57
Initiating and exiting Hibernation	57
Using the battery meter	58
Using power plans	58
Viewing the current power plan	58
Selecting a different power plan	58
Customizing power plans	58
Setting password protection on wakeup	59
Using external AC power	60
Connecting the AC adapter	61
Testing an AC adapter	62
Using battery power	63
Finding battery information in Help and Support	63
Using Battery Check	63
Displaying the remaining battery charge	64
Inserting or removing the battery	64
Charging a battery	65
Maximizing battery discharge time	66
Managing low battery levels	66
Identifying low battery levels	66
Resolving a low battery level	66
Resolving a low battery level when external power is available	66
Resolving a low battery level when a charged battery is available	66
Resolving a low battery level when no power source is available	67
Resolving a low battery level when the computer cannot exit Hibernation	67
Calibrating a battery	67
Step 1: Fully charge the battery	67
Step 2: Disable Hibernation and Sleep	67
Step 3: Discharge the battery	69
Step 4: Fully recharge the battery	69
Step 5: Reenable Hibernation and Sleep	70
Conserving battery power	70
Storing a battery	70
Disposing of a used battery	71
Replacing the battery	71
Switching between graphics modes (select models only)	72
Shutting down the computer	73
Drives	74
Handling drives	74
Optical drive	75
Identifying the installed optical drive	75
Using optical discs	76
Selecting the right disc (CDs, DVDs, and BDs)	77
CD-R discs	77
CD-RW discs	77
DVD±R discs	77
DVD±RW discs	77
LightScribe DVD+R discs	78
Blu-ray Disc (BD)	78
Playing a CD, DVD, or BD	78
Configuring AutoPlay	80
Changing DVD region settings	80
Observing the copyright warning	81
Copying a CD, DVD, or BD	81
Creating or “burning” a CD or DVD	82
Removing a CD, DVD, or BD	83
Troubleshooting drive and device driver problems	83
The optical disc tray does not open for removal of a CD, DVD, or BD	83
A disc does not play automatically	84
A DVD movie stops, skips, or plays erratically	84
A DVD movie is not visible on an external display	85
The process of burning a disc does not begin, or it stops before completion	85
A DVD playing in Windows Media Player produces no sound or display	85
A device driver must be reinstalled	85
Obtaining the latest HP device drivers	86
Obtaining the latest Windows device drivers	87
Using external drives	88
Improving hard drive performance	89
Using Disk Defragmenter	89
Using Disk Cleanup	89
Replacing the hard drive	90
External devices and external media cards	94
Using a USB device	94
Connecting a USB device	94
Removing a USB device	95
Using Digital Media Slot cards	96
Inserting a digital card	96
Removing a digital card	97
Adding or replacing a memory module	98
Security	101
Protecting the computer	101
Using passwords	102
Setting passwords in Windows	102
Setting passwords in Setup Utility	102
Administrator password	103
Managing an administrator password	103
Entering an administrator password	103
Power-on password	104
Managing a power-on password	104
Entering a power-on password	104
Using antivirus software	105
Using firewall software	105
Installing critical security updates	106
Installing an optional security cable	106
Setup Utility (BIOS)	107
Starting Setup Utility	107
Using Setup Utility	108
Changing the language of Setup Utility	108
Navigating and selecting in Setup Utility	108
Displaying system information	109
Restoring default settings in Setup Utility	109
Exiting Setup Utility	110
Setup Utility menus	110
Main menu	110
Security menu	110
System Configuration menu	111
Diagnostics menu	111
Software updates	112
Updating the BIOS	113
Determining the BIOS version	113
Downloading a BIOS update	114
Updating programs and drivers	115
Backup and recovery	116
Creating recovery discs	117
Backing up your information	118
Using Windows Backup and Restore	119
Using system restore points	120
When to create restore points	120
Create a system restore point	120
Restore to a previous date and time	120
Performing a recovery	121
Recovering from the recovery discs	121
Recovering from the dedicated recovery partition (select models only)	121

Match case Limit results 1 per page

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.

Select

Start

Control Panel

System and Security

In the

System

area, click

Device Manager

Click the arrow next to

Network adapters

to expand the list and show all adapters.

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.

Chapter 2

Wireless, local area network, and modem