Hi sjlay23,
The error code 28 indicates that the driver for this device is not installed. The recommended resolution is to install the compatible device driver.
Try the following steps and check the result.
Step 1: Uninstall the driver
a. Click Start, type devmgmt.msc and hit enter.
b. From the list of items, right click on the network controller item and click uninstall.
c. Restart the computer.
Step 2: Download and install the driver
a. Visit Dell driver download website
b. Download the right driver.
c. Right click on the driver setup file and click run as administrator.
d. Once the driver is installed, restart the computer.
e. Check if the issue persists.
See What to do when a device isn't installed properly (Also applicable for Vista)
You can also post your query at **Dell Forums** for more support options.
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