Sensors older than 3.6.0.2076 fail to updated via console request

Products

• Carbon Black Cloud Endpoint Standard

Issue/Introduction

Sensor version that have a build lower than 3.6.0.2076 fail to update when request is made from the console.

Environment

• Carbon Black Cloud Console: All Versions
• Carbon Black Cloud Sensor: All sensors prior to 3.6.0.2076 
• Microsoft Windows: All Supported Versions

Cause

• Error in confer.log:
  RepUtilValidateUpgradeKit: kit C:\Program Files\Confer\confer-upgrade-setup.msi.tmp is not confer signed
• Older sensors fail to update to recent releases because they do not trust the installer binary: DSEN-12552/CRE-18869

Resolution

1. 3.5.X and earlier sensors:  Sensor cannot be upgraded via console due to technical limitations of the sensor.  Sensors should be updated manually or via SCCM where possible.  
2. 3.6 sensor prior to version 3.6.0.2076:  Log a support request and reference DSEN-12552/CRE-18869 and indicate the impacted Org/endpoints and a backend adjustment will be made to allow upgrade.