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HP Pavilion dv5300 Notebook PC User Guide - Page 172

The computer cannot connect to a wireless local area network (WLAN).

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The computer cannot connect to a wireless local area network (WLAN). If the computer cannot connect to a WLAN: ● Verify that the computer is within optimal range of a wireless router (access point). ● Verify that the wireless light on the computer is turned on. ● Verify that the computer wireless antennae are free from obstructions. ● Verify that the wireless router and broadband modem are working correctly. 162 Chapter 15 Troubleshooting ENWW

Section	Page
Notebook Tour	11
Components	11
Top components	12
Keys	12
TouchPad	13
Buttons and switches	14
Lights	16
Display components	17
Front components	17
Rear components	18
Right-side components	18
Left-side components	20
Bottom components	21
Wireless antennae (select models only)	22
Additional hardware components	23
Labels	24
Specifications	25
Operating environment	25
Rated input power	25
Expansion port input/output signals	26
TouchPad and Keyboard	27
TouchPad	27
Using the TouchPad	28
Using an external mouse	28
Setting TouchPad preferences	28
Keyboard	29
Hotkeys	29
Hotkey quick reference	30
Hotkey procedures	30
Display and clear system information (fn+esc)	30
Open the Help and Support Center (fn+f1)	31
Open the Print Options window (fn+f2)	31
Open a Web browser (fn+f3)	31
Switch the screen image (fn+f4)	32
Initiate standby (fn+f5)	32
Initiate QuickLock (fn+f6)	33
Decrease screen brightness (fn+f7)	33
Increase screen brightness (fn+f8)	33
Play, pause or resume an audio CD or a DVD (fn+f9)	33
Stop an audio CD or a DVD (fn+f10)	33
Play previous track or section of an audio CD or a DVD (fn+f11)	33
Play next track or section of an audio CD or a DVD (fn+f12)	33
Quick Launch Buttons software	34
Accessing the Quick Launch Buttons control panel	34
Setting tiling preferences	34
Setting advanced preferences	34
Displaying the Quick Launch Buttons icon	35
Setting button assignments on an external keyboard	35
Keypads	36
Using the embedded numeric keypad	36
Enabling and disabling the embedded numeric keypad	36
Switching key functions on the embedded numeric keypad	37
Using an external numeric keypad	37
Enabling or disabling num lock mode as you work	37
Power	39
Power control and light locations	39
Power sources	41
Connecting the AC adapter	42
Standby and hibernation	43
Standby	43
Hibernation	43
Initiating standby, hibernation or shutdown	44
When you leave your work	44
When a reliable power supply is unavailable	44
When using wireless communication or readable or writable media (select models only)	45
Default power settings	46
Turning the computer or display on or off	46
Using emergency shutdown procedures	46
Initiating or resuming from standby	47
Initiating or restoring from hibernation	48
Power options	49
Accessing Power Options Properties	49
Displaying the Power Meter icon	49
Setting or changing a power scheme	50
Setting a security prompt	50
Processor performance controls	51
Battery packs	52
Inserting or removing a battery pack	52
Charging a battery pack	53
Monitoring the charge of the battery pack	54
Obtaining accurate charge information	54
Displaying charge information on the screen	54
Viewing charge displays	54
Interpreting charge indicators	54
Managing low-battery conditions	55
Identifying low-battery conditions	55
Low-battery condition	55
Critical low-battery condition	55
Resolving low-battery conditions	56
When external power is available	56
When a charged battery pack is available	56
When no power source is available	56
When the computer cannot restore from hibernation	56
Calibrating a battery pack	57
When to calibrate	57
How to calibrate	57
Step 1: Charging the battery pack	57
Step 2: Discharging the battery pack	58
Step 3: Recharging the battery pack	59
Conserving battery power	59
Conserving power as you work	59
Selecting power conservation settings	60
Storing a battery pack	60
Disposing of a used battery pack	60
Drives	61
Drive care	61
IDE drive light	62
Hard drive	63
Optical drives	66
Inserting an optical disc	67
Removing an optical disc (with power)	68
Removing an optical disc (without power)	69
Avoiding standby or hibernation	70
Multimedia	71
Multimedia hardware	71
Using the optical drive	71
Identifying the installed optical drive	71
Inserting an optical disc	72
Removing an optical disc (with power)	73
Removing an optical disc (without power)	73
Using media activity hotkeys	75
Using the QuickPlay buttons	76
Using the audio features	78
Using the audio-in (microphone) jack	79
Using the audio-out (headphone) jack	79
Using S/PDIF digital audio (select models only)	79
Adjusting the volume	80
Using the video features	81
Using the external monitor port	81
Using the S-Video-out jack	82
Remote control (select models only)	83
HP Mobile Remote Control (PC Card version)	84
Inserting the battery (PC Card version)	84
Storing the remote control in the PC Card slot	87
Button quick reference (PC Card version)	88
HP Mobile Remote Control (PC Card version) component functions	90
HP Mobile Remote Control (ExpressCard version)	91
Inserting the battery (ExpressCard version)	91
Storing the remote control in the ExpressCard slot	94
Button quick reference (ExpressCard version)	95
HP Mobile Remote Control (ExpressCard version) component functions	98
Troubleshooting the remote control	98
Multimedia software	99
Identifying preinstalled multimedia software	99
Installing multimedia software from a CD (select models only)	99
Using multimedia software	100
Using QuickPlay software	100
Protecting playback	101
Protecting the CD or DVD write process	101
Changing DVD region settings	102
Observing the copyright warning	102
External Media Cards	103
Digital Media Slot cards (select models only)	103
Inserting a digital card	104
Stopping or removing a digital card	105
PC Cards (select models only)	106
Configuring a PC Card	106
Inserting a PC Card	107
Stopping or removing a PC Card	107
ExpressCards	109
Selecting an ExpressCard	109
Configuring an ExpressCard	109
Inserting an ExpressCard	110
Stopping or removing an ExpressCard	112
External Devices	113
Using a USB device	113
Connecting a USB device	113
Stopping a USB device	114
Required USB software	114
Using a 1394 device (select models only)	115
Connecting a 1394 device	115
Stopping a 1394 device	115
Required 1394 software	115
Using the expansion port	116
Memory Modules	117
Adding or replacing memory modules	117
Effects of increasing memory	121
Video memory settings (select models only)	122
Wireless (Select Models Only)	123
Wireless features	123
Identifying an 802.11 wireless device	123
Wireless controls	124
802.11 wireless devices (select models only)	125
Setting up a WLAN in your home	126
Connecting to a WLAN in your home	127
Connecting to a public WLAN	127
Using wireless security features	127
Bluetooth wireless devices (select models only)	128
Modem and Local Area Network	129
Modem	129
Connecting the modem cable	130
Connecting a country-specific modem cable adapter	131
Selecting a location setting	131
Viewing the current country selection	131
Adding new locations when traveling	132
Solving travel connection problems	133
Using preinstalled communication software	134
Local area networks	135
Security	137
Security features	137
Passwords	138
Guidelines for setting passwords	138
Passwords set in Windows	139
QuickLock	139
Passwords set in the Setup Utility	140
Administrator password	140
Managing an administrator password	140
Entering an administrator password	141
Power-on password	141
Managing a power-on password	141
Entering a power-on password	141
Antivirus software	142
Firewall software	142
Critical updates	142
Optional security cable	143
Setup Utility	145
Setup Utility access	145
Setup Utility language	146
Setup Utility defaults	147
Setup Utility menus	148
Main menu	148
Security menu	148
System Configuration menu	149
Diagnostics menu	149
Software Update and Recovery	151
Software updates	151
HP Software Update	151
Software updates and the HP Web site	152
Accessing computer information	152
Downloading a BIOS update	153
Installing a BIOS update	154
Downloading and installing other software	155
System recovery	156
Safeguarding your information	156
Using System Restore	156
Creating a restore point	156
Restoring to a restore point	157
Reinstalling applications	157
Reinstalling applications from the hard drive	157
Reinstalling applications from discs	157
Repairing the operating system	158
Reinstalling the operating system	159
Back up your system	159
Reinstall the operating system	160
Reinstalling device drivers and other software	161
Update reinstalled software	161
Routine Care	163
Hardware maintenance	163
Battery pack	164
Disposing of a used battery pack	164
TouchPad and keyboard	165
Display	165
Drives	166
Using Disk Defragmenter	166
Using Disk Cleanup	166
Regular tune-ups	167
Traveling and shipping	168
Troubleshooting	169
Quick checklist	169
The computer will not start up.	169
The computer screen is blank.	170
The software is functioning abnormally.	170
The computer is turned on, but is not responding.	171
The computer is extremely warm.	171
An external device is not working.	171
The computer cannot connect to a wireless local area network (WLAN).	172
Customer Care	173
Preparing to contact Customer Care	173
Contacting Customer Care by e-mail or telephone	173
Taking the computer to a service partner	173
Electrostatic Discharge	175
Preventing electrostatic discharge	175
Handling drives	175
Handling internal components	175
Grounding methods	176