Hi MacRumours, We've been deploying a number of Macs through OS X Server. On the MacBook Airs and the iMacs, there's a Wi-Fi bug wherein no networks are visible, and networks can only be added through the Network Preferences. However it will not auto-connect to these networks, and it always shows as 'searching for networks' in the top Apple menu. This problem can only be resolved by going through Macintosh HD>Library>Preferences, and renaming the ‘System Configuration’ folder to ‘System Configuration 1’, then restarting the computer. However, there's a few things we've noticed: - This issue only occurs on MacBook Airs and iMacs - The deployment from OS X Server is the latest version, and it doesn't havethis error for any other models of Mac - On the systems that have this Wi-Fi bug, the preferences folder in the Library is locked with no read/write access (red warning sign) and needs to be unlocked. On the other Macs where the Wi-Fi is working fine, this folder isn't locked, leading us to believe that it's something to do with the permissions on that folder that's somehow causing the issue. So in conclusion, I don't think there's anything wrong with the system image because the problem with that folder being locked isn't occurring on other systems. Tried calling Apple support to query this, and after a 27 minute hold, they immediately hung up when they answered. Does anybody have any ideas how to resolve this issue or possibly have any suggestions for things we can try? Thanks as ever!