Hello sir, my system has been conducted a problem. lan card is disable so . i donot know how to enable lan card please give me a solution. thanking you

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Go to Device manager By following this steps

1. On the desktop right-click on My Computer and click Properties or open the Control Panel and double-click the System icon.
2. In the System Properties window click the Hardware tab.
3. In the Hardware tab click the Device Manager button.

Then on left side Search for Yellow question mark on Ethernet controller if it occurs than the problem is that you have to reinstall your LAN drivers which can be Downloaded here
And If there is no Yellow Question Mark then you have to bring a LAN card and insert in PCI Express Slot.

Make sure you have it Enabled in the Bios (from page 2-17 of the user manual):
2.4.5 Onboard Devices Configuration
Onboard PCIE 10/100M LAN [Enabled]
Allows you to enable or disable the onboard LAN controller.
Configuration options: [Enabled] [Disabled]
LAN Option ROM [Disabled]
Allows you to enable or disable the boot ROM in the onboard LAN controller. This item
appears only when the Onboard LAN item is set to Enabled. Configuration options:
[Disabled] [Enabled]

Hi,

You have to elaborate sir, can it detect wireless networks or not? if the computer can no longer detect wireless network then it could be that the wireless switch is disabled so to enable it,normally we press Fn+F5 which is the universal code to enable/disable wireless devices whether bluetooth or wireless LAN card..

2.4.2 USB Configuration
The items in this menu allows you to change the USB-related features.
Select an item then press <Enter> to display the configuration options


USB Function [Enabled]
Allows you to enable or disable the USB function.
Configuration options: [Disabled] [Enabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy
operating systems (OS). Setting to Auto allows the system to detect the
presence of USB devices at startup. If detected, the USB controller legacy
mode is enabled. If no USB device is detected, the legacy USB support is
disabled. Configuration options: [Disabled] [Enabled] [Auto]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Disabled] [Enabled]
USB 2.0 Controller Mode [HiSpeed]
Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or
Full Speed (12 Mbps). Configuration options: [HiSpeed] [Full Speed]
BIOS EHCI Hand-off [Disabled]
Allows you to enable support for operating systems without an EHCI
hand-off feature. Configuration options: [Enabled] [Disabled]

NOTE!!!

Do not disable the BIOS EHCI Hand-Off option if you are running a
Windows® operating system with USB device

hope above given details with give you a detailed description as you desired.

good luck

Hi,

You need two network adopters in your system.
Connect Internet connection in first Network card and from the other network card give it to your Switch or hub
If you are using XP system you can use Internet connection sharing to share the internet in your LAN systems.
Follow the steps to enable using ICS

1.Enable Internet Connection sharing in the LAN properties in the first network card.
2.Now your second network card automatically get an IP address in the range of 192.168.*.* series
3.Connect other systems in the LAN and make sure the system has selected Optain IP atomatically from DHCP.

You are all set.

There is also an advanced way to setup this .
Install IPCOP firewall in a system with two network cards and u can share the internet with the firewall settings

when you give power to computer press F2 or F1 or "del" key then enter in bios .
Then go to advanced configuration then check your lan port is disable? if it then enable it.
then check.
If it is in warrenty then take it to service shop they repalced it if it has hardware lan chip has issue.

You can try checking the BIOS first see if its disabled in the BIOS to boot to the BIOS turn on your computer Press during POST to enter the system setup program.

once in the BIOS you might have a multi page view, or a one page view, look for the INTEGRATED NIC see if its enabled or disabled. just enable it and restart the system then:

download
LAN CARD DRIVER

http://ftp.us.dell.com/network/R54631.EXE


see if it works. hit me back with the result.

Hi,
please restart your system and at the blue dell logo keep tapping the F2 key, the bios setup screen will open, check in here if the lan card is enabled here or not. if not enable the lan card, once it is enabled from here windows will detect it and prompt you to install drivers.

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software for sound driver and LAN driver