I\'m trying to get Network Link Conditioner working on my machine that is running OS X Mavericks. I\'m running Developer Preview 8 (the latest as of this writing). I downloa
I was also having problems with Network Link Conditioner working after upgrading to Mavericks. For me the problem was the default security settings after the upgrade that prevented software from running unless it came form the Mac App Store.
Updating this setting:
System Settings > Security & Privacy > General > Allow apps downloaded from: > Anywhere
and reinstalling the Network Link Conditioner pref pane fixed it for me. Without this setting you can install and enable it, but it has no effect and silently fails.