So I just got a very nice Cisco E4200 wireless router and did all the setup with the CD. It was very easy. I turned on all the security stuff have a nice long password.
This was the afternoon.
Just a few minutes ago, my lovely (non techy) roommate connected his visiting girlfriend's computer to the network. Somehow he managed to erase the one I made and set up his own with a different name. Anyway, not sure what happened. I did a bit of panicked fixing and we are back online.
Thankfully the down time was short enough that my mind wasn't too clouded by the internet withdraw.
However, I have now punished my roommates to the guest connection until further notice. So how to I resolve this apparently basic issue? There are a lot of fancy options on the menu. Can I grant my MAC address admin and block everyone else out? Is there some other password I need to set?
My knowledge of networking is slim, having always lived within managed systems previously.
so what should I do?