I am visiting my brother at home and am trying to set up the wi-fi for my own computer. I do not have the security key in order to get in withouth the cable. The phone numbers my brothers sons network. Jake Smith. The problem is unfortuneatly Jake died a year ago last January. We do not have his security key in order to set up a wireless connection. I am only able to use the cable that is connected to the NetGear box. Can you help us?