Mac wifi empty cone icon ??
Mac Pro, OS X Mountain Lion (10.8.3)
Hello:
The symbol indicates it is not connected to a wi-fi network. Why that is, I do not know. You might get more help posting in the wireless forum.
https://discussions.apple.com/community/wireless
Barry
If your Mac Pro doesn't have a Wi-Fi card (most don't), then hold down the command key and drag the icon out of the menu bar.
Try doing an SMC reset: http://support.apple.com/kb/ht3964
Mac wifi empty cone icon ??