I noticed a new machine on my network -- it's my next-door neighbor's Airport Extreme!
My network is set up with a WPA2 Personal password, and I don't believe that he's cracking passwords to steal my bandwidth. My suspicion is that it's accidental. I don't see any place in Airport Utility where I can say "don't allow this network to be extended".
I'd like to know
- Is it actually possible that his Extreme is extending my network, even without having the password?
- Is it possible for me to block it from doing so?
- Is there any security flaw here that I should be worried about? Or is this actually just preventing him from being able to connect via wifi (because it's all my network now)?