Dell Precision M2300 (Late 2007) - Manual (Page 97)

If you receive an insufficient memory message —
l Save and close any open files and exit any open programs you are not using to see if that resolves the problem.
l See the software documentation for minimum memory requirements. If necessary, install additional memory (see Memory Problems ).
l Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see Memory Problems ).
l Run the Dell Diagnostics (see Dell Diagnostics ).
If you experience other memory problems —
l Reseat the memory modules (see Memory Problems ) to ensure that your computer is successfully communicating with the memory.
l Ensure that you are following the memory installation guidelines (see Memory Problems ).
l Run the Dell Diagnostics (see Dell Diagnostics ).
Network Problems
Fill out the Diagnostics Checklist (see Diagnostics Checklist ) as you complete these checks.
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.
Check 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.
Wireless Local Area Network (WLAN)
For information about troubleshooting wireless local area networks, see Wireless Local Area Network .
Mobile Broadband (Wireless Wide Area Network)
Cannot connect —
The Dell Mobile Broadband Card must be activated on the network in order to connect. Once the Dell Mobile Broadband Card Utility has been launched,
position the mouse over the icon in the taskbar to read the status of the connection. If the status indicates the mobile broadband card is not activated,
see Activate your Mobile Broadband card for more information. If problems persist, contact your Mobile Broadband service carrier for details on your plan.
Check your Mobile Broadband network service —
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
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.