Carbon Black Cloud: Local Mirror Server is Unable to Download the Signature when the Local Sensor status is "Active"
Carbon Black Cloud Sensor: Version 3.8.0+
When in the "Active" status, the Sensor on the local mirror server will not be able to download and distribute the Signature to other Sensors in the org. When the Sensor is installed, the signatures will not download. The Signatures will only successfully download when the Sensor is placed in Bypass mode.
There is no resolution for this issue at this time. However, it is being actively investigated by engineering.