The article offers a resolution for issues encountered during the basic authentication procedure for CIFS administration on Ontap. It addresses the errors KRB5KRB_AP_ERR_BAD_INTEGRITY and KRB5KDC_ERR_...The article offers a resolution for issues encountered during the basic authentication procedure for CIFS administration on Ontap. It addresses the errors KRB5KRB_AP_ERR_BAD_INTEGRITY and KRB5KDC_ERR_PREAUTH_FAILED, which can arise during the process.