My guess is they are running a domain server which will require a login into the network to access anything on the network. In order to gain access you would have to have an admin add your computer to the network and then you would be able to logon to the network with your username and password.
Important note...this means you need an admin.
***The next page requires the domain name to which the computer is to be added and the username and password of an account that has the rights to add a computer to the domain.
