Compaq 370698-001 Wireless Problems, If You Have Problems with Wireless 802.11 Communication

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Troubleshooting

Wireless Problems

If You Have Problems with Wireless 802.11 Communication

■Make sure the wireless indicator light is on.

■Make sure you are using the correct SSID and channel settings.

■Make sure you are in range of an access point (for an infrastructure connection) or other wireless notebook (for an ad hoc connection).

■When you log on to an 802.11 network via an access point, yet your notebook cannot connect to network resources, your notebook may not have been assigned an IP address. If the subnet mask for your wireless connection is 255.255.000.000, the network server did not assign an IP address to your notebook, and you may have to release and renew your network IP address. If releasing and renewing the IP address does not fix the problem, the access point may need to be rebooted.

■If you want to change the SSID to a different value to connect to a different access point, or if you want to change from Infrastructure mode to Ad Hoc mode, you may first have to release and renew the Internet IP address.

■See “Local Area Network (LAN) Problems” in this chapter.

Reference Guide

6–21

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Contents Reference Guide Page Page Page Contents Battery Packs and Power Management Add-On Devices Modem and Network ConnectionsIndex TroubleshootingIdentifying Parts of the Notebook Getting Started with Your NotebookFront Panel and Right Panel Components Left Panel and Back Panel Components Bottom Panel Components Status Lights Getting Started with Your Notebook Insert the Battery Pack Setting Up Your NotebookConnect AC Power Connect a Phone Line Turn On the Notebook Set Up Windows Getting Started with Your Notebook Operating Your Notebook Basic OperationPower mode To enter this mode Function Default Power SettingsTo Change the Boot Device To Reset the NotebookTo Use the TouchPad TouchPad on-off button and indicator lightTo Use the Tap to Click Function of the TouchPad This hot key Does this To Use the Function Hot KeysTo Use the One-Touch Buttons This key combination Does this To Use the Windows and Applications KeysTo Type Alternate Graphics Using the ALT GR Key To Insert or Remove a CD or DVD Using CDs or DVDsTo Play DVD Movies To Write to DVD Media Select Models Only To Create or Copy CDsSecuring Your Notebook To Set Up Password ProtectionTo Lock Your Notebook To Attach an Optional Security Cable To Lock the Hard Drive To Protect Against VirusesTo Protect Your Hard Drive Taking Care of Your NotebookTo Maintain Your Notebook To Clean Your Notebook To Safeguard Your DataTo Extend the Life of the Display Basic Operation Managing Power Consumption Battery Packs and Power ManagementWhen this occurs Result is To resume How the Notebook Manages Power AutomaticallyTo Change Timeout Settings and Create Power Schemes To Check Battery Status Using Battery PowerTo Recharge the Battery Pack To Respond to a Low-Battery WarningTo Get the Most from Your Battery Packs Battery Packs and Power Management Disposing of a Used Battery Pack Modem and Network Connections Using the ModemTo Connect the Modem Special Restrictions in Certain Countries To Change Your Modem Settings Connecting to a Local Area Network LAN Using a Wireless LAN Adapter Select Models Only Making Wireless Network Connections Select Models Only Turning On Communication and Making a Connection To Turn Wireless Communication On and OffTurning Off Communication and Ending a Connection Modem and Network Connections To Insert or Remove a PC Card Connecting External DevicesInserting a PC Card Removing a PC Card To Connect an Audio Device To Connect a TV to Your Notebook Select Models Only Adjusting Monitor Resolution and Other SettingsUsing Dual Display Mode To Connect a 1394 Device Select Models Only To Install a RAM Expansion Module Installing Additional RAM MemoryAdd-On Devices To Remove a RAM Expansion Module Add-On Devices To Replace the Hard Drive Replacing the Hard DriveTo Replace the Hard Drive Holder To Prepare a New Hard Drive Add-On Devices Troubleshooting Your Notebook TroubleshootingIf You Hear Loud, High-Pitched Feedback from the Speakers Audio ProblemsIf No Sound Is Audible If Sound Does Not RecordIf a DVD Plays Erratically CD-ROM and DVD ProblemsIf You Cannot Boot from a CD or DVD If You Get a Region Code Error When Playing a DVD MovieIf the Notebook Is On, But the Screen Is Blank Display ProblemsIf the Notebook Cannot Read a CD or DVD If a DVD Movie Does Not Fill the ScreenIf the Hard Drive Makes a Buzzing or Whining Noise Hard Drive ProblemsIf an External Display Does Not Work If the Notebook Hard Drive Does Not SpinIf Files Are Corrupted Heat ProblemsIf the Notebook Gets Abnormally Hot If the TouchPad Moves the Pointer or Cursor While You Type Keyboard and Pointing Device ProblemsIf the Pointer Is Difficult to Control If the TouchPad Does Not WorkIf a Network Connection Responds Slowly Local Area Network LAN ProblemsIf the Built-In Network Adapter Does Not Connect to the LAN If You Cannot Log In to Netware ServersIf the Notebook Beeps But Does Not Start After Adding RAM Memory ProblemsIf a Message Reports That You Are Out of Memory If Memory Does Not Increase After Adding RAMIf the Modem Seems Slow Modem ProblemsIf the Modem Does Not Dial or No Dial Tone Is Detected If the Modem Dials, But Does Not Connect If the Modem Dials IncorrectlyIf the Modem Is Not Detected If the Modem Does Not Fax If the Modem Causes an Error MessageIf the Modem Dials, But You Cannot Hear It If the Modem Connects, But Transferred Data Is BadIf a Network PC Card Stops Communicating Properly PC Card Pcmcia ProblemsIf the Modem Clicks Repeatedly, But Does Not Connect If the Notebook Does Not Recognize a PC CardIf a PC Card Modem Is Not Working Performance ProblemsIf the Notebook Pauses or Runs Sluggishly If the Notebook Stops Responding Power and Battery Pack ProblemsIf the Notebook Turns Off Immediately After It Turns On If the Notebook Has a Short Operating Time If the Time Remaining for the Battery Pack Is Not CorrectIf a Serial or Parallel Printer Does Not Print Printing ProblemsIf the Notebook Does Not Enter Standby Mode as Expected If the Notebook Does Not Enter Hibernation as ExpectedIf a Serial Mouse Does Not Work Serial, Parallel and USB ProblemsIf a Serial Modem Does Not Work Properly If the Serial or Parallel Port Is Not Working Startup ProblemsIf the Notebook Does Not Respond When You Turn It On If the Notebook Will Not Boot from Battery PowerIf the Notebook Stops Responding After Booting If the Notebook Will Not Boot from the Diskette DriveIf You Have Problems with Wireless 802.11 Communication Wireless ProblemsIf You Can Connect, But the Network Is Slow To Run the Bios Setup Utility Configuring Your NotebookMain Menu System Devices Menu Security Menu Boot Menu Updating Software and Drivers from the Web Using System Recovery FeaturesSafeguarding Your Data Operating System OS CD Repair OS CD Reinstall Restoring Software Applications Reinstalling DriversIndex Index Reference Guide Index-3 Index-4 Reference Guide Index-5 Index-6