Downgrading to Airport 3.3.1
Posted in daily
If you're experiencing problems after upgrading to Airport 3.4, typically loss of signal strength and disconnection, you'll find instructions on how to downgrade at,
http://homepage.mac.com/fishsun/articles/uninstall_airport34.htm
More info and discussions on,
I didn't manage to upgrade to Airport 3.3.1 after reinstalling 3.1. xlr8yourmac has several workarounds. The first one worked for me.