Question about Dell Latitude C400 Notebook

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My friend has a dell latitude c400 which will connect to internet via earthnet, has a built in wireless but how do he turn this function on, what short key or anything else is it, pls helllpp

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The wireless card probably has the wrong driver. The drivers from the Dell support web page never seem to work.

The card, known as a 1350 WLAN Mini PCI Card, was actually made by Broadcom, and the Broadcom bcmwl5.sys driver will make it work.

Hewlett-Packard used this card in their notebook computers. Here is a link to the installation program. Windows will warn that this is not the right driver. If you bypass the warning, you can install the driver and make the card work.

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&swItem=ob-55703-1&jumpid=reg_R1002_USEN

Here's what HP says about it:

This driver supports 802.11i/WPA2 for a/b/g and certain b/g WLAN cards. For other cards, it provides Wi-Fi protected access (WPA) support. This driver also supports Cisco Compatible Extensions Program V4.0 features (software supplicant required) and provides support for "125 High Speed Mode" for notebooks with Broadcom 802.11g and 802.11a/b/g cards that support "125M High Speed Mode".

Posted on Oct 23, 2009

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Go to Network conections and enable the wireless device. OR, you may need to open up the wi-fi door and check the model# on the wi-fi card, and type in the model# followed by 'drivers' in a Google search to acquie the drivers, too

Posted on Sep 25, 2009

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1 Answer

My dell latitude c400 will not hook to a wireless connection it says make sure you wireless switch is on, says no wireless connections in range and im sitting right to my router, what am i doing wrong?


Look for a little wireless icon in purple on the keyboard in the F keys up top. Example F9.

You hold down the Fn on the bottom of your keyboard and at the same time press the (example F9) to enable wireless.

It varies by model and I don't know which F key it is on the c400. You should be able to tell.

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TRYING TO CONNECT DELL LATITUDE C400 TO WIRELESS ROUTER ALL READY INSTALLED.


Connecting XP
Click your Start Button
Select and click Control Panel
Select Network Connections
Select Wireless Network Connections
Right click
Select View Available Wireless Networks
5. Highlight the network you want to connect to
Click Advanced
6. Select the wireless network tab
7. Highlight the network in the available networks window
9. Click configure
9. IN the Properties Window
Double check the SSID (network name)
Enter the WEP KEY provided to you by the office
Click OK

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Reinstall the W-Lan drivers..
download them from the following link

http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&ServiceTag=&SystemID=LAT_PNT_P3_C400&os=WW1&osl=en&catid=&impid=

best regards,


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use the lan connection to get online, then once prob clears you should be all set, otherwise back up your data and a fresh install always does the trick

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Wireless switch


do you mean to turn the wireless on?
I am not familur with the 400 but I think the wireless is on/off by the operating system. at the very least it will be on the key pad.
there are function keys FN that need to be pressed at the same time as the wireless symble on the keyboard. that could possibley turn on/off wireless. then the rest is in the software. it needs to be set up.
get back to me:)

Jan 30, 2008 | Dell Latitude C400 Notebook

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