When enroll the Spreadtrum chipset device with Knox Manage, there are repeat attestation "Failed policy" alerts.
Root cause ::
Your device does not TrustZone. Which is the driver of the frequent attestation checks.
When you enroll a device, the KM agent pushes the "initial policy". Attestation is checked through this Initial policy.
It's not related to whether an attestation policy is applied to device or not.