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Toshiba NB255N245 user manual Lan

Models: NB255N245

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Troubleshooting

LAN

Problem	Procedure
Cannot access LAN	Check for a firm cable connection between the
	LAN jack and the LAN hub.

Wake-up on LAN	Make sure the AC adaptor is connected. The
	Wake-up on LAN function consumes power even
	when the system is off.
	If problems persist, consult your LAN
	administrator.

Wireless LAN

If the following procedures do not restore LAN access, consult your LAN administrator. For more information on wireless communication, refer to Chapter 4, Operating Basics.

Problem	Procedure
Cannot access	Make sure the computer’s wireless
Wireless LAN	communication service is turned on.
	If problems persist, consult your LAN
	administrator.

User’s Manual

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Toshiba NB255N245 user manual Lan

Contents

Page Trademarks CopyrightDisclaimer FCC conditions FCC informationFCC notice Declaration of Conformity Information ContactWorking environment EU Declaration of ConformityCE compliance User’s Manual Disposal of batteries and/or accumulators Following information is only valid for EU-member StatesDisposal of products Following information is only for Turkey Disposing of the computer and the computers batteriesReach Compliance Statement Precautions Table of Contents HW Setup and Passwords HW Setup Accessing HW Setup HW Setup Window Optional DevicesManual contents PrefaceIcons ConventionsAbbreviations KeysTerminology DisplayMessages StartGeneral Precautions Provide adequate ventilationCreating a computer-friendly environment Stress injury Heat injuryPressure or impact damage Mobile phonesHardware Equipment checklistIntroduction Software DocumentationFeatures Disks PowerLegal Footnote Battery life *3 Legal Footnote Hard Disk Drive HDD Capacity*4Multimedia PortsSlots Security Legal Footnote Wireless LAN*7Communications SoftwarePlug and Play Operating systemToshiba Utilities Special features Sleep Mode Low battery automatic Hibernation Mode *1Hibernation Mode Heat dispersal *1Toshiba Value Added Package Creator Utilities and ApplicationsToshiba Disc Toshiba J CD&DVD Applications J DiscOptions Memory kitBridge media slot Grand TourFront with the display closed Battery System indicatorsPower Numeric Lock Left sideArrow Lock PortLAN jack USB 2.0 portDC in 19V jack Right sideBack side Security lock slotUnderside Underside of the computerBattery safety lock SpeakerFront with the display open Front of the Touch Pad model with the display openMicrophone Power buttonWeb Camera LED Display screenKeyboard indicators Caps LockAC adaptor AC adaptor 2-pin plugGetting Started Getting Started Connecting the AC adaptor Connect the power cord to the AC adaptor Opening the display Opening the displayGetting Started Turning on the power Starting up for the first timeSleep Mode Turning off the powerShut Down Mode → Control Panel → System and Security → Power Options Before entering Sleep Mode, be sure to save your dataSleep Mode limitations Hibernation ModeStarting Hibernation Mode Restarting the computerSystem Recovery Options System Recovery OptionsCreating Recovery Media Getting Started Getting Started Using the Touch Pad Operating BasicsToshiba Disc Creator Double-click Tap twiceHow to learn more about Toshiba Disc Creator Data VerificationUsing the web camera Web CameraUsing Toshiba Web Camera Application Using the SoftwareWireless LAN Using the microphoneWireless communications Enable/Disable Wireless communication with hot key SecurityLAN cable types Wireless communication indicatorIndicator status Indication Connecting the LAN cable Disconnecting the LAN cableMoving the computer Cleaning the computerUsing the cleaning cloth Heat dispersal Keyboard Typewriter keysEmulating keys on an enhanced keyboard Function keys F1 … F12Soft keys FN key combinations Hot keys Keyboard Toshiba J Utilities J Accessibility FN Sticky keyWindows special keys Arrow modeNumeric mode Keypad overlayTemporarily changing modes Temporarily using normal keyboard overlay onTemporarily using overlay overlay off Generating Ascii characters Power and Power-up Modes Power conditionsPower indicators Battery indicatorPower indicator Battery typesDC in indicator Battery packReal Time Clock battery ErrorCharging the batteries Care and use of the battery packProcedures Time Battery charging noticeBattery type Power on Power off Monitoring battery capacity Maximizing battery operating timeBattery type State and Retention Time Retaining data with power offExtending battery life Replacing the battery pack Releasing the battery pack Power-up modes Windows utilitiesSystem auto off Panel power on/offHot keys Accessing HW Setup HW Setup and PasswordsHW Setup HW Setup WindowPassword GeneralBoot Priority DisplayOff Disable Wireless Communication Switch Function Wake-up on LANCards/memory Power devicesOptional Devices Peripheral devicesPoints to note about the SD/SDHC memory card Bridge media slotMemory media Memory media format Additional memory moduleMultiMediaCard Card Type CapacitiesInstalling a memory module Removing the memory module cover Removing a memory module Seating the memory module coverUSB floppy diskette drive Battery PacksUniversal AC Adaptor Connecting the monitor cable to the external monitor port External monitorConnecting the security lock Security lockTroubleshooting Problem solving processPreliminary checklist Analyzing the problemSelf test Hardware and system checklistSystem start-up AC power PowerOverheating power down Problem ProcedureBattery LCD panel PasswordKeyboard Touch Pad Hard disk drivePointing device Click Start J Control Panel J HardwareProblemProcedure USB mouseSD/MuliMedia Card External MonitorSound system Sleep/HibernationLAN Toshiba support Before you callWhere to write Legal Footnotes CPU*1HDD drive capacity*4 Battery Life*3Memory Main System*2 Non-applicable Icons Wireless LAN*7Graphics Processor Unit GPU Copy ProtectionAppendixes Table of Contents Environmental requirements SpecificationsPhysical Dimensions SizePower Requirements ComputerDisplay Controller Display controllerRadio Characteristics Wireless LANCard Specifications Supported frequency sub-bands FrequencyFrequency Range Channel ID 2400-2483.5 MHz Length AC Power Cord and ConnectorsWire size Current ratingOutside of Europe Certification agenciesEurope UL approved BS approved Glossary AbbreviationsGlossary Ascii Glossary-4 Glossary-5 Glossary-6 Glossary-7 Glossary-8 Glossary-9 Glossary-10 Glossary-11 Glossary-12 Glossary-13 Glossary-14 Index User’s Manual Index-2 User’s Manual Index-3