We recently locked down our wireless with WPA and now have the daunting task for getting 730 Macs on the network. The 10.6 machines we'll have to do by hand, as far as I can tell, but I need help using profiles for 10.7+ Macs. I made a profile, which works on devices that weren't previously connected, but anything that was on the network before gets an error. It won't overwrite the old settings and makes you add the WPA key manually. We aren't giving the key to staff. So what can I do to remove the old saved network and add the profile in the most efficient way? Thanks!