airportSecurity
There's someone in my neighbourhood that keeps cracking the WPA2 password on my Airport Extreme router, connecting, and using between 5 to 15 Gigs of bandwidth a day.
I've read online that with utilities, even a complex WPA2 password can be cracked within hours or a couple of days.
Is there a way to configure my Airport Extreme router to block connection attempts from a machine after X number of failed password attempts?
Make sure you don't have any 2.4Ghz cordless phones near your Airport Extreme. Some of this phone will tend to do what you describe when they interfere with your Airport Extreme, at least that used to happen to me with an Airport Express I had.
Yes it is, you have to configure your second airport express with the option to Extend Wireless Network.
This is how my network looks (names blurred just in case):
ANd this is the configuration for the Airport 2 (the one extending the network created by Airport 1:
Best Answer
I don't believe you can do that, but you can use the "timed access" feature to block all MAC addresses other than the ones you own.
http://forums.macrumors.com/showthread.php?t=508984