Hi....i have a similar problem but havent found the root cause. Although, we do have a workaround in place. Please check this post : https://community.cloudera.com/t5/Support-Questions/Ranger-installation-fails-with-0-status-code-received-on/m-p/300848#M220394 The reason behind the error is that Ambari cannot fetch the recommended settings for the change. This can happen if the API call fails to receive any reply since the connection is blocked.   Hope this helps. If the comment helps you to find a solution or move forward, please accept it as a solution for other community members. ... View more