Running 300 MacBooks with Mac OS X 10.6.8.
When logged on as a local admin I can connect to WiFi, I save the connection in the system profile, allowing pre-authentication before users attempt to log on.
This has been working fine for nearly a year. Now the system profile requires re-entering the WiFi password before connecting after logon, restart, even turning airport off and back on.
What could be causing this? DNS? IAS/Radius? DHCP?
Windows clients just work.
Any ideas would be great, the users are back on Monday!