title: Can not start Mongo node
body: <p>Trying to start mongo node with command</p>
  
  <pre><code>mongos --configdb 192.168.6.3:27019 --port 27018
  </code></pre>
  
  <p>In results having output:</p>
  
  <pre><code>Tue Mar 15 16:08:21.062 [mongosMain] warning:  couldn't check dbhash on config server 192.168.6.3:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [192.168.6.3:27019] mongos connectionpool error: couldn't connect to server 192.168.6.3:27019
  Tue Mar 15 16:08:21.064 [mongosMain] ERROR: error upgrading config database to v4 :: caused by :: could not load config version for upgrade :: caused by :: 11002 socket exception [CONNECT_ERROR] server [192.168.6.3:27019] mongos connectionpool error: couldn't connect to server 192.168.6.3:27019
  Tue Mar 15 16:08:21.064 warning:  couldn't check dbhash on config server 192.168.6.3:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [192.168.6.3:27019] mongos connectionpool error: couldn't connect to server 192.168.6.3:27019
  </code></pre>
  
  <p>Could you help me, what I'm doing wrong?</p>