[Satellite 6] Client Registration or Yum update failed with [Errno 14] curl#35 - "Peer reports incompatible or unsupported protocol version."

Issue

• Cannot register the system to the Red Hat satellite 6 getting curl error.

  # curl --insecure --output katello-ca-consumer-latest.noarch.rpm https://satellite.example.com/pub/katello-ca- consumer-latest.noarch.rpm
  curl: (35) Peer reports incompatible or unsupported protocol version.
  

• Getting error while trying to perform yum update.

  # subscription-manager refresh
  Unable to verify server's identity: tlsv1 alert protocol version
  

  https://satellite.example.com/pulp/content/Default_Organization/PROD/RHEL7/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#35 - "Peer reports incompatible or unsupported protocol version."