HP CQ41-205TX, CQ41-204TX 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.

22 Chapter 2 Wireless, local area network, and modem

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Contents Page Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Multimedia Drives External devices and external media cards 117 Features Identifying hardwareTouchPad ComponentsTop components Lights ComponentsFeatures Panel System and Security Power Options Buttons and speakersKeys Fn keyDisplay Front components Rear componentRight-side components Left-side components Bottom components Wireless antennas Additional hardware components Labels Wireless, local area network, and modem Using wireless devicesUsing the wireless button Identifying wireless and network status iconsUsing the wireless controls Using HP Wireless Assistant Using operating system controlsUsing a Wlan Setting up a WlanUse a wireless transmitter with built-in security Use wireless encryptionProtecting your Wlan Work behind a firewallConnecting to a Wlan Roaming to another networkUsing Bluetooth wireless devices select models only Bluetooth and Internet Connection Sharing ICSTroubleshooting wireless connection problems Cannot connect to a WlanCurrent network security codes are unavailable Cannot connect to a preferred networkNetwork icon is not displayed Cannot connect to the wireless router Wlan connection is very weakUsing the modem select models only Connecting a modem cableViewing the current location selection Connecting a country-specific modem cable adapterSelecting a location setting Adding new locations when traveling Select Start Devices and PrintersSolving travel connection problems Check the telephone line typeCheck for pulse or tone dialing Set the modem to ignore dial tonesConnecting to a local area network Clear the check box for Wait for dial tone before dialingUsing the TouchPad Pointing devices and keyboardSetting TouchPad preferences Connecting an external mouseUsing keyboard hotkeys Function HotkeyDisplaying system information Opening Help and SupportOpening a Web browser Switching the screen imageOpening the Print Options window Initiating Sleep Initiating QuickLockDecreasing screen brightness Increasing screen brightnessPlaying, pausing or resuming an audio CD or a DVD Stopping an audio CD or a DVDPlaying previous track or section of an audio CD or a DVD Playing next track or section of an audio CD or a DVDUsing keypads Num lk keyUsing the embedded numeric keypad Using an optional external numeric keypadSwitching key functions on the embedded numeric keypad Enabling and disabling the embedded numeric keypadCleaning the TouchPad and keyboard Multimedia features MultimediaIdentifying your multimedia components Environmental NoticesAdjusting the volume Click Customize notification iconsUsing the media activity hotkeys Using DVD Play software Using other preinstalled multimedia softwareInstalling multimedia software from a disc Multimedia softwareConnecting external audio devices Select Start All Programs Accessories Sound RecorderAudio Checking your audio functionsConnecting an external monitor or projector VideoConnecting an Hdmi device Configuring audio for Hdmi Webcam select models only Webcam tipsAdjusting webcam properties Troubleshooting Computer does not detect the optical drive Disc does not play automatically Select Advanced Settings Monitor tabDisc does not play DVD movie stops, skips, or plays erratically DVD movie is not visible on an external displayRemove any discs from the optical drive Obtaining the latest HP device drivers Obtaining the latest Windows device driversPower management Setting power optionsUsing power-saving states Initiating and exiting SleepUsing the battery meter Initiating and exiting HibernationUsing power plans Setting password protection on wakeupViewing the current power plan Selecting a different power planUsing external AC power Connecting the AC adapter Testing an AC adapter Using Battery Check Using battery powerFinding battery information in Help and Support Displaying the remaining battery charge Inserting or removing the batteryCharging a battery Identifying low battery levels Maximizing battery discharge timeManaging low battery levels Resolving a low battery level Disable Hibernation and Sleep Calibrating a batteryFully charge the battery Reenable Hibernation and Sleep Discharge the batteryFully recharge the battery Conserving battery power Storing a batteryDisposing of a used battery Replacing the batteryShutting down the computer Click Shut downDrives Handling drivesSelect Start Computer Identifying the installed optical driveOptical drive Using optical discs DVD±RW/RSelecting the right disc CD-R discsCD-RW discs DVD±R discsBlu-ray Disc Playing a CD, DVD, or BDLightScribe DVD+R discs Select Start Default Programs Change AutoPlay settings Configuring AutoPlayChanging DVD region settings Copying a CD or DVD Select Start All Programs CyberLink DVD Suite Power2GoObserving the copyright warning Creating burning a CD or DVD Removing an optical disc CD, DVD, or BD Removing the optical drive Using external drives Improving hard drive performance Using Disk DefragmenterUsing Disk Cleanup Replacing the hard drive Page Page Tighten the hard drive cover screws Replacing the hard drive External devices and external media cards Using a USB deviceConnecting a USB device Removing a USB device Using Digital Media Slot cards Inserting a digital cardRemoving a digital card Memory modules Page Page Page Security Protecting the computerUsing passwords Setting passwords in WindowsSetting passwords in Setup Utility Administrator passwordPower-on password Entering an administrator passwordUsing antivirus software Using firewall softwareInstalling critical security updates Installing an optional security cableSetup Utility Bios Starting Setup UtilityNavigating and selecting in Setup Utility Using Setup UtilityChanging the language of Setup Utility Restoring default settings in Setup Utility Setup Utility menus Exiting Setup UtilityMain menu Security menuSystem Configuration menu Diagnostics menuSoftware updates Updating the Bios Determining the Bios versionDownloading a Bios update Updating programs and drivers Backup and recovery Creating recovery discs Backing up your information Using Windows Backup and Restore Select Start All Programs Maintenance Backup and RestoreUsing system restore points When to create restore pointsCreate a system restore point Restore to a previous date and timePerforming a recovery Recovering from the recovery discsSelect Start All Programs Recovery Manager Recovery Manager Click System Recovery in the Recovery Manager windowSymbols/Numerics IndexJacks Ssid Page Wlan label 14 Wlan module 11 writable media Index

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