title: ngrok killing a tunnel from windows 7 command line
body: <p>I'm trying to use ngrok to foward my app,  currently hosted on localhost:3602, to my development partner. </p>
  
  <p>I've done this many times in the past successfully, simply by typing in </p>
  
  <pre><code>ngrok http 3602
  </code></pre>
  
  <p>I get back a url that he can conntect to. But now when I type that in I get the following error message:</p>
  
  <blockquote>
    <p>Tunnel session failed. Your account is limited to 1 simultaneous ngrok client session.
    Active ngrok client sessions in region 'us':
    - f21bd0dbe67928069054c733a5e11f88 (54.80.69.18)
    ERR_NGROK_108</p>
  </blockquote>
  
  <p>Obviously I must have an existing tunnel session running somewhere. </p>
  
  <p>My problem is I have no idea where to find that existing tunnel session and how to terminate it. It does not exist as either a running application, process or service in the task manager, and I can find no syntax in the documentation for how to terminate a tunnel session. I've tried rebooting my machine to no effect, which tells me this is probably not a local problem, but rather something running on the ngrok site linked to my account, yet nothing I can find in my account settings indicates anything helpful.</p>
  
  <p>Can anyone provide the necessary command to clear up this problem.  Thanks.</p>