Solved: Cannot connect to internet using ethernet cable after reformatting hard drive

you would need to re-instal all your drivers from the dell website - using your service tag number, on a label on the pc, or model number

------------------------------------------------------------------------
Device Manager

Please Post back the results in device manager as requested below

You will now need to take a screen shot and copy that back to the working PC.
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the screen shot and attach the screen shot in a reply on the forum here.
If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply

how to access device manager for different windows versions
http://www.computerhope.com/issues/ch000833.htm

Hold the Windows key and press Pause key, should open to allow device manager to be seen, see the menu on the left hand side

on a laptop you may need to use Hold the Windows key and press FN key + the pause key

Once you are in device manager then navigate to:

network adaptors, click on the + > post back the devices that are listed under network adapters
are there any yellow ! ? or a X

post a screen shot of the device manager - network adapters

To post a screen shot of the active window.
For Windows XP

Hold the Alt key and press the PrtScn key. Open the Windows PAINT application (Start> All Programs> Accessories> Paint) and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.

To upload the screen shot to the forum, open the full reply window ("Go Advanced" button) and use the Manage Attachments button to upload it here.
Full details are available here http://library.techguy.org/wiki/TSG_...g_a_Screenshot