kube-controller-manager pods are in CrashLoopBackOff state on Red Hat Openshift Container Platform 4

Solution In Progress - Updated -

Issue

The Kube-Controller-Manager pods are restarting in a loop with error:

E0627 10:06:54.412383       1 leaderelection.go:327] error retrieving resource lock kube-system/kube-controller-manager: Get "https://api-int.example.com:6443/apis/coordination.k8s.io/v1/namespaces/kube-system/leases/kube-controller-manager?timeout=6s": net/http: request canceled (Client.Timeout exceeded while awaiting headers)

Environment

Red Hat Openshift Container Platform 4

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