Network Link Conditioner installed successfully but doesn't have an effect

Hi community,
i installed Network Link Conditioner while Mountain Lion has been Beta.
I see the Network Link Conditioner Pane in my Preferences but if i turn on the effect with the toggle nothing happens. I setup a no connectivity profile to test it and Safari, my own application i want test and the iPhone simulator as well are able to open web pages.
It seems, that the version i had installed has no effect on the network stack?
However, i downloaded the latest version but im unable to uninstall the Network Link Conditioner.
If you have any suggestions i would be happy to know them.
I don't want to reinstall my system just for setting up Network Link Conditioner but i really need it for testing purposes.

I had the same problem but it was my mistake that I downloaded the "Network LInk Conditioner" of Mountain Lion where as i am usling Lion OSX . Actually in https://developer.apple.com/downloads/index.action , there are two links for download and there is specified the OS also . I checked and download again for Lion and it isworking fine .

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