I have fond out what’s causing Error: “The request failed with HTTP status 401: Unauthorized”.
In Reporting service configuration manager I need to provide user account details in service account
reference : https://social.technet.microsoft.com/Forums/en-US/b49d5d82-21fd-42b5-b827-0008c9be7f32/report-server-error-quotthe-request-failed-with-http-status-401-unauthorized?forum=sqlreportingservices
