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HP V5230TU, V5224TU, V5221TU The computer cannot connect to a wireless local area network WLAN

Models: V5215TU V5162EA V5204NR V5206TU

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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.

158 Chapter 15 Troubleshooting

ENWW

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HP V5230TU, V5224TU, V5221TU, V5221EA, V5219TU, V5218TU manual The computer cannot connect to a wireless local area network WLAN

Contents

Notebook PC User Guide Copyright 2005 Hewlett-Packard Development Company, L.P First Edition December Document Part NumberTable of contents Notebook TourTouchPad and Keyboard 3 Power Drives MultimediaCalibrating a battery pack 9 Wireless Select Models Only External Media CardsExternal Devices Memory ModulesSetup Utility 13 Software Update and Recovery10 Modem and Local Area Network SecurityTroubleshooting Routine CareElectrostatic Discharge IndexENWW ENWW 1 Notebook Tour Components1. Select Start My Computer 3. Select Hardware tab Device ManagerTop components KeysComponent DescriptionTouchPad ComponentDescription Buttons and switches ComponentDescription Lights ComponentDescription Front components Display componentsComponent DescriptionRear components Right-side componentsComponentDescription ComponentPower connector Connects an AC adapter or an optional power adapterChapter 1 Notebook Tour ComponentLeft-side components ComponentDescription Bottom components 10 Chapter 1 Notebook TourComponent DescriptionWireless antennae select models only ENWWComponents Additional hardware components 12 Chapter 1 Notebook TourComponent DescriptionLabels Specifications Rated input powerOperating environment Expansion port input/output signals FeatureSupport 16 Chapter 1 Notebook Tour ENWW2 TouchPad and Keyboard TouchPadComponent DescriptionUsing the TouchPad Using an external mouseSetting TouchPad preferences Keyboard HotkeysHotkey procedures Hotkey quick referenceDisplay and clear system information fn+esc Open the Help and Support Center fn+f1 Open the Print Options window fn+f2Open a Web browser fn+f3 Switch the screen image fn+f4 Initiate standby fn+f5Initiate QuickLock fn+f6 Decrease screen brightness fn+f7Increase screen brightness fn+f8 Play, pause or resume an audio CD or a DVD fn+f9Using the embedded numeric keypad KeypadsEnabling and disabling the embedded numeric keypad Using an external numeric keypad Switching key functions on the embedded numeric keypadEnabling or disabling num lock mode as you work 26 Chapter 2 TouchPad and Keyboard ENWW3 Power Power control and light locations28 Chapter 3 Power ENWWComponent DescriptionPower sources Recommended power sourceTask Connecting the AC adapter Standby and hibernation StandbyHibernation When you leave your work When a reliable power supply is unavailableInitiating standby, hibernation or shutdown Page Default power settings Using emergency shutdown proceduresTurning the computer or display on or off Initiating or resuming from standby ProcedureTask Select Start Turn Off ComputerInitiating or restoring from hibernation ProcedureTask ResultPower options Accessing Power Options PropertiesDisplaying the Power Meter icon 3. Select the Always show icon on the taskbar check boxSetting or changing a power scheme Setting a security promptProcessor performance controls Battery packs Inserting or removing a battery packCharging a battery pack Monitoring the charge of the battery pack Interpreting charge indicatorsObtaining accurate charge information Displaying charge information on the screenManaging low-battery conditions Identifying low-battery conditionsLow-battery condition Critical low-battery conditionResolving low-battery conditions When external power is availableWhen a charged battery pack is available When no power source is availableCalibrating a battery pack When to calibrateHow to calibrate Step 1 Charging the battery packStep 2 Discharging the battery pack Conserving battery power Conserving power as you workStep 3 Recharging the battery pack Storing a battery pack Disposing of a used battery packSelecting power conservation settings 4 Drives Drive careIDE drive light 50 Chapter 4 DrivesHard drive 7. Lift the hard drive away from the computer To install a hard drive 1. Lower the hard drive into the hard drive bay4. Close the cover 52 Chapter 4 Drives5. Tighten the hard drive cover screws ENWWHard drive Optical drives Inserting an optical disc Removing an optical disc with power Removing an optical disc without power Avoiding standby or hibernation Using the optical drive Identifying the installed optical drive5 Multimedia Multimedia hardwareInserting an optical disc Removing an optical disc with power Removing an optical disc without power Using media activity hotkeys Using the audio features 64 Chapter 5 MultimediaComponent DescriptionUsing the audio-in microphone jack Using the audio-out headphone jackUsing S/PDIF digital audio select models only Adjusting the volume c. Select the Place volume icon in the taskbar check boxUsing the video features Using the external monitor portUsing the S-Video-out jack Remote control select models only HP Mobile Remote Control PC Card versionInserting the battery PC Card version ENWW Multimedia hardwareStoring the remote control in the PC Card slot Button quick reference PC Card version ButtonFunction in Microsoft Windows Function in QuickPlay select models onlyPress to increase system volume Press to decrease system volumeIf muted, press to restore system volume 74 Chapter 5 Multimedia+left arrow command in the active application Press to switch the computer image betweenButton Function in Microsoft WindowsHP Mobile Remote Control PC Card version component functions HP Mobile Remote Control ExpressCard version Inserting the battery ExpressCard version3. Replace the battery compartment cover 78 Chapter 5 MultimediaENWW Storing the remote control in the ExpressCard slot Button quick reference ExpressCard version ENWW Multimedia hardwareButton Function in Microsoft WindowsButton Function in Microsoft WindowsFunction in QuickPlay select models only PreviousTroubleshooting the remote control HP Mobile Remote Control ExpressCard version component functionsIdentifying preinstalled multimedia software Installing multimedia software from a CD select models onlyMultimedia software Select Start All ProgramsUsing multimedia software Protecting playback Protecting the CD or DVD write processChanging DVD region settings Observing the copyright warning1. Select Start My Computer 88 Chapter 5 Multimedia ENWW6 External Media Cards Media Reader cards select models onlyInserting a digital card Stopping or removing a digital card Configuring a PC Card PC Cards select models onlyInserting a PC Card Stopping or removing a PC CardTo stop or remove a PC Card Configuring an ExpressCard ExpressCardsSelecting an ExpressCard Inserting an ExpressCard ENWW ExpressCardsStopping or removing an ExpressCard Using a USB device Connecting a USB device7 External Devices Stopping a USB device Required USB softwareUsing a 1394 device select models only Connecting a 1394 deviceStopping a 1394 device Required 1394 softwareUsing the expansion port 102 Chapter 7 External Devices8 Memory Modules Adding or replacing memory modules7. Lift the memory module compartment cover 2 away from the computer 9. To insert a memory module 11. Close the coverENWW Adding or replacing memory modules13. Replace the battery pack 14. Reconnect external power and external devices12. Tighten the memory module compartment cover screw 15. Turn on the computerEffects of increasing memory 1. Select Start My ComputerVideo memory settings select models only 9 Wireless Select Models Only Wireless featuresIdentifying an 802.11 wireless device a. Select Start My ComputerWireless controls 802.11 wireless devices select models only Setting up a WLAN in your home Connecting to a WLAN in your home Connecting to a public WLANUsing wireless security features Bluetooth wireless devices select models only 10 Modem and Local Area Network ModemConnecting the modem cable To connect a modem cable1. Plug the modem cable into the modem jack 1 on the computer 2. Plug the modem cable into the RJ-11 telephone wall jackConnecting a country-specific modem cable adapter Selecting a location settingViewing the current country selection 1. Select Start Control PanelAdding new locations when traveling 1. Select Start Control Panel Network and Internet ConnectionsSolving travel connection problems Check the telephone line typeCheck for pulse or tone dialing a. Select Start Control Panel Network and Internet ConnectionsUsing preinstalled communication software 1. Select Start All Programs Accessories Communicationsg. Clear the check box for Wait for dial tone before dialing 10. Clear the check box for Wait for dial tone before dialingLocal area networks 2. Plug the other end of the cable into a network wall jack 122 Chapter 10 Modem and Local Area NetworkENWW Security features 11 SecurityPasswords Guidelines for setting passwordsPasswords set in Windows QuickLockPasswords set in the Setup Utility Administrator passwordManaging an administrator password Power-on password Entering an administrator passwordManaging a power-on password Entering a power-on passwordCritical updates Antivirus softwareFirewall software Optional security cable 130 Chapter 11 Security ENWW12 Setup Utility Setup Utility accessSetup Utility language Setup Utility defaults Setup Utility menus Main menuSecurity menu SelectSystem Configuration menu Diagnostics menuf10 and f12 Delay sec-Set the delay for Internal Network Adapter boot-Enable136 Chapter 12 Setup Utility ENWW13 Software Update and Recovery Software updatesHP Software Update Select Start All Programs HP HP Software UpdateSoftware updates and the HP Web site Accessing computer informationDownloading a BIOS update Installing a BIOS update Downloading and installing other software System recovery Safeguarding your informationUsing System Restore Creating a restore pointReinstalling applications Restoring to a restore pointReinstalling applications from the hard drive Reinstalling applications from discsRepairing the operating system Reinstalling the operating system Back up your systemReinstall the operating system Reinstalling device drivers and other software Update reinstalled softwarea. Select Start Run 148 Chapter 13 Software Update and Recovery ENWWHardware maintenance 14 Routine CareBattery pack Disposing of a used battery packTouchPad and keyboard DisplayUsing Disk Defragmenter Using Disk CleanupDrives Regular tune-ups Traveling and shipping 15 Troubleshooting Quick checklistThe computer will not start up The computer screen is blank The software is functioning abnormallyIn Windows XP Home, select Start Turn Off Computer Restart The computer is turned on, but is not responding The computer is extremely warmAn external device is not working The computer cannot connect to a wireless local area network WLAN Taking the computer to a service partner Customer CarePreparing to contact Customer Care Contacting Customer Care by e-mail or telephone160 Chapter 15 Troubleshooting ENWW16 Electrostatic Discharge Preventing electrostatic dischargeHandling drives Handling internal componentsGrounding methods Symbols/Numerics IndexPage Page Page Page 168 Index ENWW