I have a Toshiba laptop with windows vista. I have a D-Link router 615. I had my internet service (comcast) shut off several months ago and had the service turned back on today. The connection works fine BUT I am trying to secure my network and can't. When I logged onto my dlink site it asked for adm. password. I typed in the one I had used and it does not work. I did it a number of times to make sure that I did not make an error. First, how do I log into my site if my password does not work? Next, how do I secure my network so no one else in my complex can use my connection? I know how to use a computer but have no idea as to terminology or how it works. I need really simple directions.