Unable to connect My Book Live to swicher

I bought a unit 2TB My Book Live. It is for a small network of computers (5) do not have internet access (i dont need). Only connect together and shared network drives. They are connected to a switcher that centralize connections. My idea was to connect the My Book Live to the switcher and will be accessed from either, but none of them do. Some have Win XP SP3 and other Windows 7. I run the CD, but the wizard is unable to find the disk. The device is light green.

What I can do? Is it compatible with this configuration?

Looks familiar to some one I responded in the spanish forum :smileyvery-happy:

You might want to check if the units are on the same workgroup

skip the cd and connect via browser //mybooklive