120 TroubleshootingGeneralC H E C K T H E N E T W O R K C A B L E C O N N E C T O R — Ensure that the network cable isfirmly inserted into both the network connector on the back of the computerand the network connector.C H E C K T H E N E T W O R K L I G H T S O N T H E N E T W O R K C O N N E C T O R — No light indicatesthat no network communication exists. Replace the network cable.R ESTART THE COMPUTER AND LOG ON TO THE NETWORK AGAIN.C H E C K Y O U R N E T W O R K S E T T I N G S — Contact your network administrator or theperson who set up your network to verify that your network settings are correctand that the network is functioning.Wireless Local Area Network (WLAN)For information about troubleshooting wireless local area networks, see"Wireless Local Area Network" on page 63.Mobile Broadband (Wireless Wide Area Network)NOTE: The Dell Mobile Broadband Card Utility user’s guide is available through theWindows Help and Support Center. To access the Help and Support Center, clickStart→ Help and Support. You can also download the Dell Mobile Broadband CardUtility user’s guide from support.dell.com.NOTE: Remove any network cables from the computer and disable the WLAN card.To disable the WLAN card, click Start→ Connect To→ Wireless NetworkConnection→ Disable.NOTE: The icon appears on the Windows desktop if the computer has a DellMobile Broadband card installed. Double-click the icon to launch the utility. Oncethe utility has launched, the icon appears in the notification area.C A N N O T C O N N E C T — The Dell Mobile Broadband Card must be activated onthe network in order to connect. Once the Dell Mobile Broadband Card Utilityhas been launched, position the mouse over the icon in the taskbar to readthe status of the connection. If the status indicates the mobile broadband cardis not activated, see "Activate your Mobile Broadband card" on page 121 formore information. If problems persist, contact your Mobile Broadband servicecarrier for details on your plan.C H E C K Y O U R M O B I L E B R O A D B A N D N E T W O R K S E R V I C E — Contact your MobileBroadband service carrier to verify coverage plan and supported services.