User Manual

Troubleshooting 105
Network Problems
Fill out the "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
CHECK THE NETWORK CABLE CONNECTOR — Ensure that the network cable is firmly inserted into both the
network connector on the back of the computer and the network connector.
CHECK THE NETWORK LIGHTS ON THE NETWORK CONNECTOR — No light indicates that no network
communication exists. Replace the network cable.
RESTART THE COMPUTER AND LOG ON TO THE NETWORK AGAIN.
C
HECK YOUR NETWORK SETTINGS — 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.
Mobile Broadband Network
NOTE: The Dell Mobile Broadband Card Utility user’s guide is located under Help and Support. You can also
download the user’s guide from support.dell.com.
NOTE: The icon appears in the notification area if the computer has a Dell Mobile Broadband card installed.
Double-click the icon to launch the utility.
C
ANNOT CONNECT — The Dell Mobile Broadband card must be activated on the network in order to
connect. Position the mouse over the icon in the notification area to read the status of the
connection. If the status indicates the mobile broadband card is not activated, see "Activate your Mobile
Broadband card" on page 106 for more information. If problems persist, contact your Mobile Broadband
service carrier for details on your plan.
CHECK YOUR MOBILE BROADBAND NETWORK SERVICE — Contact your Mobile Broadband service carrier to
verify coverage plan and supported services.
CHECK THE STATUS IN THE DELL MOBILE BROADBAND CARD UTILITY — Click the icon in the taskbar to
launch the utility. Check the status in the main window:
• No card detected – Restart the computer and launch the utility again.
•
Radio Off – Ensure the Mobile Broadband card is enabled by viewing the status in the Dell Mobile
Broadband Card Utility. If the card is disabled, enable the Mobile Broadband card by clicking the
Tu rn
Radio On
button in the main screen of the Dell Mobile Broadband Card Utility.
•
Searching – The Dell Mobile Broadband Card Utility has not yet located a Mobile Broadband
network. If the searching state persists, ensure that the signal strength is adequate.
•
No service – The Dell Mobile Broadband Card Utility did not locate a Mobile Broadband network.
Ensure that the signal strength is adequate. Restart the Dell wireless utility or contact your Mobile
Broadband network provider.