kubeconfig file, error: "You must be logged in to the server (Unauthorized)"

Issue

• On several instances using kubeconfig file to authenticate to the Openshift environment you get the following error:
• "error: You must be logged in to the server (Unauthorized)".
• In the past when re-created kubeconfig file and authentication successful.
• Seems like the kubeconfig file will only works for about a month.