I have an Airport Extreme (802.11n Wi-Fi) that I purchased in December, 2010. I love it and have had no problems. The setup was extremely easy and I've been very impressed with performance.
I am concerned though, that when I first set it up I didn't pay enough attention to the security settings. I'm "paranoid" about getting hacked and want to make sure I max out my protection. But, I'm a bit afraid of mucking around with it since it is working great and messing something up.
I would like to change the wireless network name. And also reset passwords (WPA2 etc.). And also, ensure that I have max. security protection settings on. I've read the documentation but still unsure of the correct way to do this and avoid messing things up.
Also, is it a good idea to turn on the MacBook Pro's internal firewall? I have a DSL modem that connects to the Extreme. Will, I get a performance hit in network speed by turning on the MacBook Pro's firewall?
I guess that's it for now and thanks in advance for the help regarding these questions.
WPA2 Personal is the default setting for the AirPort Extreme, so it will be setup that way unless things have been changed.
You can check this setting at the same time that you change the wireless network name and password.