Network Link Conditioner doens't works
I've installed Network Link Conditioner from the last Hardware IO Tool Pack. I've the prefpane in system preferences without any problem and I can enable the filter. But nothing happen. I've tried to navigate in the web locally or downloading a file and the speed is decreased at all.
How can i fix it ? I've tried to reboot, uninstalling and reinstalling the prefpane, but nothing
On a clean Mountain Lion 10.8.2 installation
MacBook Pro, OS X Mountain Lion (10.8.2)