Solving Airport 3.4 Issues

All around the Mac web there are reports of problems with airport after Apple's recent 3.4 update and after a recent security upgrade.

There main issues are:

-Weakened Airport Signal

-Loss of Internet Connection (but not airport signal) when connecting to multiple streams of data (like if you are downloading several things at once). The only ways to restore the internet connection are to reboot, 'sleep and wake up', or manually kill airport in the terminal and restart it there.

-SMTP issues.

I have seen the first 2 problems on a variety of machines and believe I have a fix.

1. Inside Library/Preferences in your home folder delete com.apple.systempreferences.plist and com.apple.airport.adminutility.plist.

2. Upgrade to Airport 3.4.1

3. Reboot

SMTP problems were solved by quitting Entourage, restarting with the option key held down, and rebuilding the Entourage database. On some machines the smtp settings had to be re-entered.

Sorry no fix for Mail yet.