A light at the top of the lid is present to inform teachers when students are connected to the Internet. However, it only seems to indicate a wireless connection. If you use a wired connection to access the Internet and the wireless radio is off, the light does not illuminate. In the future, Dell says it will make this light flash when the Internet is being accessed, in order to better inform teachers when students are surfing instead of taking notes. The Latitude 2100 uses Dell's Wireless utility. The adapter is a Dell Wireless 1397, which only supports 802.11b/g. An adapter with 802.11a/g/n is available.