title: Why does Hyper-V-VmSwitch produce an error log of Event ID 15?
body: <p>everyone!</p>
  
  <p>I got a problem with using hyper-v.</p>
  
  <p>When I use the switch what I create on hyper-v and reboot my PC, I get an error log from Hyper-V-VmSwitch. </p>
  
  <p>But when I use the default switch, I don't get any error log from Hyper-V-VmSwitc.</p>
  
  <p>Could anybody shed some light on it for me? 
  I'd like to know why the switch I created has the error log and how to fix it.</p>
  
  <p>Thank you!</p>
  
  <p>The following is the error log detail:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"&gt;
  &lt;System&gt;
    &lt;Provider Name="Microsoft-Windows-Hyper-V-VmSwitch" Guid="{ID}" /&gt; 
    &lt;EventID&gt;15&lt;/EventID&gt; 
    &lt;Version&gt;0&lt;/Version&gt; 
    &lt;Level&gt;2&lt;/Level&gt; 
    &lt;Task&gt;1010&lt;/Task&gt; 
    &lt;Opcode&gt;0&lt;/Opcode&gt; 
    &lt;Keywords&gt;0x8000000000000080&lt;/Keywords&gt; 
    &lt;TimeCreated SystemTime="2018-12-21T11:55:29.126445000Z" /&gt; 
    &lt;EventRecordID&gt;2618&lt;/EventRecordID&gt; 
    &lt;Correlation /&gt; 
    &lt;Execution ProcessID="4" ThreadID="472" /&gt; 
    &lt;Channel&gt;System&lt;/Channel&gt; 
    &lt;Computer&gt;PC_NAME&lt;/Computer&gt; 
    &lt;Security UserID="ID" /&gt; 
  &lt;/System&gt;
  &lt;EventData&gt;
    &lt;Data Name="Status"&gt;3221225524&lt;/Data&gt; 
    &lt;Data Name="PortNameLen"&gt;36&lt;/Data&gt; 
    &lt;Data Name="PortName"&gt;ID&lt;/Data&gt; 
    &lt;Data Name="PortFNameLen"&gt;1&lt;/Data&gt; 
    &lt;Data Name="PortFName" /&gt; 
    &lt;Data Name="SwitchNameLen"&gt;36&lt;/Data&gt; 
    &lt;Data Name="SwitchName"&gt;ID&lt;/Data&gt; 
    &lt;Data Name="SwitchFNameLen"&gt;1&lt;/Data&gt; 
    &lt;Data Name="SwitchFName" /&gt; 
    &lt;Data Name="UniqueEvent"&gt;9&lt;/Data&gt; 
  &lt;/EventData&gt;
  &lt;/Event&gt;</code></pre>
  </div>
  </div>
  </p>