Use the ise-2.7.0.356.SPA.x86_64.iso image for physical appliance or standard virtual machine installations.

If you are planning a fresh installation of ISE 2.7 (perhaps for a lab environment), ensure your underlying infrastructure meets the strict requirements. ISE is resource-intensive.

Your CCO account is not linked to a contract that ever included ISE 2.7. Solution: Ask your organization’s Smart Account administrator to grant you download permissions.