title: Connected to MQ, but cannot disconnect, error 2018
body: <p>I have a difficulties with IBM MQ. I have connected to MQ, but couldn't disconnect. the message says:    </p>
  
  <pre><code>2017-06-28|19:27:17|  133|Connection accepted, Channel [AVNCHCTM.CLIENT]  ConName [10.155.224.179] Flags [BlockMqmUsers=Y AllowBlankUserID=Y  UseridUpperLowerCase=* IQ    
  
  NiL=0 ] User []   
  </code></pre>
  
  <p>Could you please let me know how to disconnect now? I don't have valid connection handle Hconn . Error:   </p>
  
  <pre><code>2018  MQRC_HCONN_ERROR   
  </code></pre>
  
  <p>Can I force channel to stop and what could happen after that?<br>
  May be this situation has another solution?    </p>
  
  <p>I appreciate any possible help</p>