I just purchased a time capsule. I have wireless for free in my building which I do not have to pay for. Can I just plug the time capsule into the wall and use it as a time machine? How do I go about this and am I clear on what is going on. Thanks for the help and it is much appreciated. I just bought a new mac and I want to back up my old one via time capsule and time machine. But I am not on a network on my time capusle. Hope this helps.