title: Trouble using Network Link Conditioner on OS X Mavericks
body: <p>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 downloaded the "Hardware IO Tools for Xcode 5 Developer Preview -  June 2013" to get the Network Link Conditioner pref pane. I have also tried the version of Network Link Conditioner from the previous Hardware IO Tools bundle which fails to open with a "Could not load Network Link Conditioner preference pane." error when trying to load it.</p>
  
  <p>With the version for Xcode 5 I get one of two fail states.</p>
  
  <p>First, when I open NLC and click the lock icon to "make changes" I see the administrator unlock window that says:</p>
  
  <p><code>com.apple.Network-Link-Conditioner.remoteservice.xcp wants to make changes. Type your password to allow this.</code></p>
  
  <p>When this shows up I am unable to enter my password. No keyboard characters are registered in the password field, or in any other application until I cancel the password prompt. I have no trouble with the equivalent dialog in any other preference panes.</p>
  
  <p>Second, I am sort of able to get past the password issue by uninstalling the latest NLC pref pane, installing the previous version, uninstalling the previous version, and then re-installing the latest NLC preference pane. However, I note that the password dialog is different in this case.  I get the more generic:</p>
  
  <p><code>System Preferences wants to make changes. Type your password to allow this.</code></p>
  
  <p>In this second failed state, once I type in my password the NLC pref pane is fully accessible but has zero affect on my network link.</p>
  
  <p>Has anyone been able to use the Network Link Conditioner successfully on OS X Mavericks?</p>
  
  <p><strong>Update:</strong></p>
  
  <p>The version of Hardware IO Tools released on October 22 and the final release of Mavericks appear to be working excellent.</p>