HP LJ475UT manual Wireless network connection is not working

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The wireless network connection is not working

If a wireless network connection is not working as expected, follow these suggestions:

●To enable or disable a wireless or wired network device, right-click the Network Connection icon in the notification area, at the far right of the taskbar. To enable devices, select the check box from the menu option. To disable the device, clear the check box.

●Be sure that the wireless device is turned on.

●Be sure that the computer wireless antennas are free from obstructions.

●Be sure that the cable or DSL modem and its power cord are properly connected and that the lights are on.

●Be sure that the wireless router or access point is properly connected to its power adapter and to the cable or DSL modem, and that the lights are on.

●Disconnect and then reconnect all cables, and turn the power off and then back on.

The optical disc tray does not open for removal of a CD or DVD

1.Insert the end of a paper clip (1) into the release access in the front bezel of the drive.

2.Press in gently on the paper clip until the disc tray is released, and then pull out the tray (2) until it stops.

3.Remove the disc (3) from the tray by gently pressing down on the spindle while lifting the outer edges of the disc. Hold the disc by the edges and avoid touching the flat surfaces.

NOTE: If the tray is not fully accessible, tilt the disc carefully as you remove it.

4.Close the disc tray and place the disc in a protective case.

Troubleshooting 79

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Contents HP Notebook User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents VGA Drives Performing a system recovery Backing up your information Cleaning products Page Finding information WelcomeResources For information about Finding informationTouchPad Getting to know your computerTop Lights Buttons Control Center System Power ManagementFn key KeysEsc key Front Right Left Left Display Bottom Networking Using an Internet service provider ISP Creating a wireless connection Identifying wireless and network status iconsUsing a Wlan Turning wireless devices on and offSetting up a new Wlan Connecting to an existing WlanRoaming to another network Protecting your WlanConnecting to a wired network Using Bluetooth wireless devices select models onlyUsing a modem select models only Connecting a modem cableConnecting a country- or region-specific modem cable adapter Connecting to a local area network LAN select models only Identifying the hotkeys Using the keyboardKeyboard and pointing devices Using the keyboard Using the embedded numeric keypad Using keypadsTurning the embedded numeric keypad on and off Using the integrated numeric keypadTurning the TouchPad off and on Using the TouchPadUsing an optional external numeric keypad Selecting Using TouchPad gesturesNavigating Pinching/Zooming Setting pointing device preferencesScrolling Multimedia Using the media activity keysUsing the audio features Adjusting the volume Checking your audio functions Using the Webcam select models onlyVGA Using video devicesConnecting an Hdmi device select models only Configuring audio for Hdmi select models only Shutting down the computer Power managementUsing power-saving states Setting power optionsInitiating and exiting Suspend Initiating and exiting HibernationUsing the Power icon Using battery powerUsing power management Viewing the current power management settingsDisplaying the remaining battery charge Inserting or removing the battery Charging a battery Identifying low battery levels Maximizing battery lifeManaging low battery levels Resolving a low battery level Conserving battery powerStoring a battery Replacing the battery Using external AC powerDisposing of a used battery Testing an AC adapter Handling drives DrivesRemoving the hard drive Replacing or upgrading the hard driveLift the hard drive 3 out of the hard drive bay Drives Installing a hard drive Page Identifying the installed optical drive Using optical drives select models onlyInserting an optical disc Removing an optical discWhen the disc tray opens normally Page Inserting a digital card Using Digital Media Slot cards select models onlyExternal cards and devices Removing a digital card Configuring an ExpressCard Using ExpressCards select models onlyInserting an ExpressCard Removing an ExpressCard Using a USB deviceRemoving a USB device Connecting a USB deviceUsing optional external drives Using optional external devicesMemory modules Page Page Page Page Protecting the computer SecuritySetting passwords in Computer Setup Using passwordsSetting passwords in the operating system Managing a power-on password Managing an administrator passwordEntering an administrator password Entering a power-on password Using firewall softwareInstalling an optional security cable Performing a system recovery Backing up your information Backup and RecoveryPerforming a system recovery Backing up your information Starting Computer Setup Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Updating the BiosDownloading a Bios update Determining the Bios versionTroubleshooting Troubleshooting and supportComputer is unable to start up Computer screen is blankComputer is on but not responding Software is functioning abnormallyComputer is unusually warm An external device is not workingOptical disc tray does not open for removal of a CD or DVD Wireless network connection is not workingMovie is not visible on an external display Computer does not detect the optical driveDisc does not play Contacting customer support Component LabelsCleaning products Cleaning your computerInput power SpecificationsOperating environment Electrostatic discharge USB IndexJacks