Hi @balo
Cloudera recently changed the download policy and now to download Ambari (and/or HDP) you need a valid subscription. Please see the announcement here: Transition to private repositories for CDH, HDP and HDF
Toward the middle of that announcement, you will see a paragraph that begins "The links below provide all the details required to update your environment" which explains the credentials and how to properly obtain them if you don't have them already.
Bill Brooks, Community Moderator
Was your question answered? Make sure to mark the answer as the accepted solution.
If you find a reply useful, say thanks by clicking on the thumbs up button.