Getting connection refused while importing any image

Issue

• Not able to import any image in OCP.
• Getting below error everytime while importing an image:

# oc import-image h1234/jenkins-2-rhel7  --from=registry.access.redhat.com/openshift3/jenkins-2-rhel7    --confirm  
The import completed with errors.

Name:               jenkins-2-rhel7
Namespace:          sXXX
Created:            Less than a second ago
Labels:             <none>
Annotations:        openshift.io/image.dockerRepositoryCheck=2018-01-31T12:37:44Z
Docker Pull Spec:   docker-registry.default.svc:5000/sXXX/jenkins-2-rhel7
Image Lookup:       local=false
Unique Images:      0
Tags:               1

latest
  tagged from registry.access.redhat.com/openshift3/jenkins-2-rhel7

  ! error: Import failed (InternalError): Internal error occured: Get https://registry.access.redhat.com/v2/: dial tcp X.X.X.X:443 getsockopt: connection refused
      Less than a second ago

error: tag latest failed: Internal error occurred: Get https://registry.access.redhat.com/v2/: : dial tcp X.X.X.X:443 getsockopt: connection refused