Updating network driver
Update the network adapter driver to fix the problem.
You can check if there is a yellow mark next to network device name in Device Manager.
An update might even solve problems encountered by your interface when attempting to make data transfers across the Internet.
Driver Update™'s purpose is to provide easy, one-click access to all of the latest drivers for your computer.
This saves you time and prevents the possibility of installing an incorrect system driver, which could potentially cause a system crash.
You will need this information to download the proper drivers.
Go to your network adapter’s manufacturer website and download the drivers for your device.
A driver is required for the network adapter on your server, so that it can be properly configured for your Windows SBS 2008 network.