Dell PP24L manual Network Problems, General, Wireless Local Area Network WLAN

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 77).

I F Y O U E X P E R I E N C E O T H E R M E M O R Y P R O B L E M S —

•Reseat the memory modules (see "Memory Problems" on page 90) to ensure that your computer is successfully communicating with the memory.

•Ensure that you are following the memory installation guidelines (see "Memory Problems" on page 90).

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 77).

Network Problems

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 153) as you complete these checks.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

General

C 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 is firmly inserted into both the network connector on the back of the computer and 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 indicates that no network

communication exists. Replace the network cable.

R E S T A R T T H E C O M P U T E R A N D L O G O N T O T H E N E T W O R K A G A I N .

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 the person who set up your network to verify that your network settings are correct and 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 50.

Mobile Broadband (Wireless Wide Area Network)

NOTE: The Dell Mobile Broadband Card Utility user’s guide is available through the Windows Help and Support Center. To access the Help and Support Center, click Start→ Help and Support. You can also download the Dell Mobile Broadband Card Utility 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 Network Connection→ Disable.

NOTE: The icon appears on the Windows desktop if the computer has a Dell Mobile Broadband card installed. Double-click the icon to launch the utility. Once the utility has launched, the icon appears in the notification area.

Troubleshooting

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