title: Hyperledger composer multi user identity
body: <p>I am following below tutorial </p>
  
  <p><a href="https://hyperledger.github.io/composer/integrating/enabling-rest-authentication.html" rel="nofollow noreferrer">https://hyperledger.github.io/composer/integrating/enabling-rest-authentication.html</a> </p>
  
  <p>I am able to complete the steps till setting up default wallet identity. After this when i try system ping method I get the error.</p>
  
  <pre><code>{
    "error": {
      "statusCode": 500,
      "name": "Error",
      "message": "Error trying to ping. Error: Error trying to query chaincode. Error: chaincode error (status: 500, message: Error: The current identity has not been registered:maeid1)",
      "stack": "Error: Error trying to ping. Error: Error trying to query chaincode. Error: chaincode error (status: 500, message: Error: The current identity has not been registered:maeid1)\n    at _checkRuntimeVersions.then.catch (/home/praval/.nvm/versions/node/v6.11.1/lib/node_modules/composer-rest-server/node_modules/composer-connector-hlfv1/lib/hlfconnection.js:696:34)"
    }
  }
  </code></pre>
  
  <p>The same error I get while testing from access token.</p>
  
  <pre><code>curl -v http://localhost:3000/api/system/ping?access_token=xxxxx
  </code></pre>
  
  <p>Though I can run network ping successfully.</p>
  
  <pre><code>composer network ping -p hlfv1 -n 'digitalproperty-network' -i maeid1 -s NfUhmXtiaSUH
  </code></pre>
  
  <p>Thanks for help.</p>