er application messages are received from the broker.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section post"><dt>Postcondition</dt><dd>Call <code>reconnect_callback</code> yourself, or call <a class="el" href="group__api.html#gae3d3aafc7588ed53a90c9f66fc620a6e">mqtt_sync</a> (which will trigger the call to <code>reconnect_callback</code>).</dd></dl>
<dl class="section attention"><dt>Attention</dt><dd>Only initialize an MQTT client once (i.e. don't call <a class="el" href="group__api.html#gaa5dab8a06f01