HP CQ36-104TX, CQ35-304TU 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 terms 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 of the WLAN device is not properly installed.

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

26 Chapter 2 Wireless and local area network

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Contents User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Power management Drives External media cards 120 Identifying the hardware Top componentsTouchPad Lights Buttons and fingerprint reader select models only Panel System and Security Power Options Front components KeysRight-side components Left-side components Bottom components Wireless antennas Display componentsAdditional hardware components Identifying the labels Page Wireless and local area network Using wireless devices Identifying wireless and network status iconsUsing the wireless controls Using the wireless buttonUsing Wireless Assistant software select models only Using operating system controls Using a Wlan Setting up a WlanProtecting your Wlan Connecting to a Wlan Use a wireless transmitter with built-in securityRoaming to another network Using HP Mobile Broadband select models only Inserting a SIMPage Page Removing a SIM Page Using Bluetooth wireless devices select models only Bluetooth and Internet Connection Sharing ICSTroubleshooting wireless connection problems Cannot connect to a WlanCannot connect to a preferred Wlan network Network icon is not displayedCurrent Wlan network security codes are unavailable Cannot connect to the wireless router Wlan connection is very weakConnecting to a local area network LAN Using pointing devices Setting pointing device preferencesUsing the TouchPad Pointing devices and keyboardRotating select models only Pinching select models onlyUsing hotkeys Function Hotkey Description Fn+f5 Using keypads Fn+f9Using the embedded numeric keypad Enabling and disabling the embedded numeric keypadCleaning the TouchPad and keyboard Using an optional external numeric keypadSwitching key functions on the embedded numeric keypad Multimedia features MultimediaIdentifying your multimedia components Multimedia features Adjusting the volume Using the media activity functions Using the media activity hotkeysUsing multimedia software Installing multimedia software from a discMultimedia software Connecting external audio devices AudioChecking your audio functions Page Connecting an external monitor or projector Connecting an Hdmi deviceVideo Configuring audio for Hdmi select models only Adjusting webcam properties WebcamTroubleshooting Disc tray does not open for removal of a discComputer does not detect the optical drive Disc does not play Disc does not play automatically Movie stops, skips, or plays erraticallyMovie is not visible on an external display Obtaining the latest HP device drivers Obtaining the latest Windows device drivers Power 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 adapterUsing battery power Testing an AC adapterFinding battery information in Help and Support Using Battery CheckDisplaying the remaining battery charge Identifying batteriesInserting or removing the battery Charging a battery Maximizing battery discharge time Managing low battery levelsIdentifying low battery levels Resolving a low battery levelCalibrating a battery Fully charge the batteryDisable Hibernation and Sleep Discharge the batteryConserving battery power Fully recharge the batteryReenable Hibernation and Sleep Storing a battery Disposing of a used batteryReplacing the battery Shutting down the computerClick Shut down Identifying installed drives DrivesHandling drives Using an optical drive Identifying the installed optical driveUsing optical discs Selecting the right disc CDs, DVDs, and BDsCD-R discs CD-RW discsDVD±R discs DVD±RW discsConfiguring AutoPlay Playing a CD, DVD, or BDChanging DVD region settings Observing the copyright warningCopying a CD or DVD Creating burning a CD or DVDUsing Disk Defragmenter Improving hard drive performanceRemoving an optical disc CD, DVD, or BD Using HP ProtectSmart Hard Drive Protection Using Disk CleanupIdentifying HP ProtectSmart Hard Drive Protection status Using HP ProtectSmart Hard Drive Protection software Replacing the hard drivePage Page Close the cover Tighten the 3 hard drive cover screws Drives Using a USB device Connecting a USB deviceExternal devices Removing a USB devicePage Using an eSATA device Connecting an eSATA deviceRemoving an eSATA device External media cards Using Digital Media Slot cards Inserting a digital cardRemoving a digital card Using ExpressCards Configuring an ExpressCardInserting an ExpressCard Removing an ExpressCard Using ExpressCards Memory modules Adding or replacing memory modules Page Page Upgrading a memory module in the primary memory module slot Page Page Security Computer risk Security feature Protecting the computerUsing passwords Setting passwords in WindowsSetting passwords in Setup Utility Administrator passwordPower-on password Managing an administrator passwordManaging a power-on password Using antivirus software Using firewall software Installing critical security updates Installing an optional security cable Using the fingerprint reader select models onlyLocating the fingerprint reader Registering fingerprintsUsing your registered fingerprint to log on to Windows Setup Utility Starting Setup Utility Using Setup Utility Changing the language of Setup UtilityNavigating and selecting in Setup Utility Restoring default settings in Setup Utility Exiting Setup UtilityDisplaying system information Page Setup Utility Menus System Configuration menuMain menu Security menuDiagnostics menu Primary Hard Disk Self TestSoftware updates Updating the Bios Determining the Bios versionDownloading a Bios update Page Updating programs and drivers Symbols/Numerics IndexDVD SIM SIM

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