Problem Solved See next post for solution. I am in possession of an iMac that had some network issues. To resolve these issues, I reset the network settings by removing; 'com.apple.airport.preferences.plist', 'com.apple.network.identification.plist', 'NetworkInterfaces.plist' and 'preferences.plist' from '/Library/Preferences/SystemConfiguration/' to let OS X recreate them. Now that is the background on what I've done so far, and it fixed the problems but now I have noticed a new issue. When I connect to my offices wireless connection, it connects fine and allows me to surf, but the Airport icon in the Menubar displays no connection. If anyone has any ideas or solutions please let me know. Thanks in advance.