Unable to push a docker image to Openshift Online internal registry

Issue

• Failing to push an image to the OpenShift Internal registry

  # docker push <image-name:tag>
  The push refers to repository [docker.io/..../....]
  7aafee95a636: Preparing
  d2002240de5d: Preparing
  c431418f6075: Preparing
  be269c61895e: Preparing
  9d93ce18f76e: Preparing
  c0326cfaf747: Waiting
  040fd7841192: Waiting
  denied: requested access to the resource is denied
  

  # docker push registry.[cluster-id].openshift.com/[project_name]/
  
  
  e9f38dc2sc11: Preparing
  je9ib327d130: Preparing
  x4a5a378dea2: Preparing
  059daof25005: Preparing
  496d5b2d3sf1: Preparing
  07hd8vd76567: Waiting
  unauthorized: authentication required