HP 8440P manual Troubleshooting wireless connection problems, Cannot create a Wlan connection

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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 create a WLAN connection

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 to show all of the installed 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.

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Contents HP EliteBook Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Adjusting the volume Power management Drives Security 151 Xii Identifying hardware FeaturesTop components Pointing devicesComponent Description LightsRapidly Panel System and Security Power Options Buttons, switches, and fingerprint readerKeys Fn key Front componentsRight-side components Rear componentsLeft-side components Bottom components Display components Wireless antennas select models only Additional hardware components Identifying the labelsPage Using wireless devices select models only Wireless, modem, and local area networkUsing the wireless controls Identifying wireless and network iconsUsing the wireless button Using HP Connection Manager select models only Using Wireless Assistant software select models onlyUsing operating system controls Setting up a Wlan Using a Wlan device select models onlyProtecting your Wlan Use a wireless transmitter with built-in security Connecting to a WlanRoaming to another network Inserting a SIM select models only Using HP Mobile Broadband select models onlyRemoving a SIM select models only Page Bluetooth and Internet Connection Sharing ICS Using a Bluetooth wireless device select models onlyCannot create a Wlan connection Troubleshooting wireless connection problemsNetwork icon is not displayed Cannot connect to a preferred networkCurrent network security codes are unavailable Wlan connection is very weak Cannot connect to the wireless routerConnecting a modem cable purchased separately Using the modem select models onlyAdding new locations when traveling Selecting a location settingViewing the current location selection Select Start Devices and Printers Solving travel connection problemsClick Properties Connecting to a local area network LAN Using the keyboard Using pointing devicesPointing devices and keyboard Initiating Sleep Displaying system informationViewing battery charge information Switching the screen imageDecreasing screen brightness Increasing screen brightnessUsing keypads Using HP QuickLookUsing an optional external numeric keypad Using the embedded numeric keypadSwitching key functions on the embedded numeric keypad Enabling and disabling the embedded numeric keypadCleaning the TouchPad, keyboard, and vents Adjusting the volume Multimedia featuresMultimedia Click Customize notification icons Multimedia softwareInstalling multimedia software from a disc Accessing your preinstalled multimedia softwareAudio Connecting external audio devicesChecking your audio functions Page Using the external monitor port Connecting an external monitor or projectorUsing the DisplayPort VideoPage Optical drive select models only Using optical discs CDs, DVDs, and BDsIdentifying the optical drive CD-R discs Selecting the right disc CDs, DVDs, and BDsCD-RW discs DVD±R discsDVD±RW discs Playing a CD, DVD, or BDLightScribe DVD+R discs Blu-ray Discs BDsChanging DVD region settings Configuring AutoPlayCopying a CD, DVD, or BD Observing the copyright warningRemoving an optical disc CD, DVD, or BD Creating burning a CD, DVD, or BDTroubleshooting Computer does not detect the optical drive Disc does not play automatically Disc does not playMovie is not visible on an external display Movie stops, skips, or plays erraticallyObtaining the latest HP device drivers Device driver must be reinstalledWebcam select models only Adjusting webcam propertiesCapturing business card images Page Setting power options Power managementUsing power-saving states Initiating and exiting SleepUsing power plans Using the battery meterInitiating and exiting Hibernation Viewing the current power plan Setting password protection on wakeupSelecting a different power plan Customizing power plansUsing external AC power Using Power Assistant select models onlyStarting Power Assistant Connecting the AC adapter Using battery powerUsing Battery Check Finding battery information in Help and SupportDisplaying the remaining battery charge Inserting or removing the batteryCharging a battery Managing low battery levels Maximizing battery discharge timeResolving a low battery level Identifying low battery levelsFully charge the battery Calibrating a batteryDisable Hibernation and Sleep Fully recharge the battery Discharge the batteryReenable Hibernation and Sleep Storing a battery Conserving battery powerDisposing of a used battery Replacing the batteryPower management Shutting down the computer Testing an AC adapterPage Drives Identifying installed drivesHandling drives Page Using Disk Cleanup Using Disk DefragmenterImproving hard drive performance Identifying HP 3D DriveGuard status Using HP 3D DriveGuardUsing HP 3D DriveGuard software Replacing a hard drive in the hard drive bay Page Page Removing the protective insert Replacing a drive in the upgrade bayReplacing a hard drive Page Page Replacing an optical drive Page Page Connecting a USB device Using a USB deviceExternal devices Removing a USB device Using USB legacy supportConnecting a 1394 device Using a 1394 deviceRemoving a 1394 device Page Using optional external devices Using external drivesUsing a docking device External media cards Using SD Card Reader cardsInserting a digital card Configuring an ExpressCard Using ExpressCards select models onlyRemoving a digital card Inserting an ExpressCardRemoving an ExpressCard Using smart cards select models only Removing a smart card Inserting a smart cardMemory modules Page Page Page Upgrading a memory module in the primary memory module slot Page Page Page Protecting the computer SecuritySetting passwords in Windows Using passwordsSetting passwords in Computer Setup Managing a Bios administrator password Bios administrator passwordEntering a Bios administrator password Using Computer Setup DriveLockEntering a DriveLock password Setting a DriveLock passwordRemoving DriveLock protection Changing a DriveLock passwordEntering an Automatic DriveLock password Using Computer Setup Auto DriveLockRemoving Automatic DriveLock protection Viewing Computer Setup System Information Using Computer Setup security featuresSecuring system devices Using Computer Setup System IDs Using antivirus software Using firewall software Installing critical updates Using HP ProtectTools Security Manager select models only Installing a security cable Software updates Updating software Determining the Bios version Updating the BiosDownloading a Bios update Page Click Download Updating programs and driversUsing SoftPaq Download Manager Backup and recovery Backing up your information Select Start All Programs Maintenance Backup and RestoreBackup and recovery Using the Windows recovery tools Performing a recoveryUsing a Windows 7 operating system DVD purchased separately Using f11 recovery toolsSelect Repair your computer Starting Computer Setup Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Computer Setup menusSecurity menu File menuUser Management requires a Bios administrator password System Configuration menuUSB port to the computer Enable/disable Preboot Authentication on HP QuickLook Ansi MultiBoot About the boot device order Enabling boot devices in Computer Setup Considering boot order changes Setting a new boot order in Computer Setup Choosing MultiBoot preferencesSetting a MultiBoot Express prompt Dynamically choosing a boot deviceEntering MultiBoot Express preferences Management and printing Configuring and deploying a software image Using Client Management SolutionsManaging and updating software HP Client Automation select models onlyHP SSM System Software Manager Using the HP Universal Print Driver Index Symbols/NumericsDVD-ROM Jacks Ssid Wireless Assistant

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