CB Defense: Cannot open Windows Firewall console

Products

• Carbon Black Cloud Endpoint Standard (formerly Cb Defense)

Issue/Introduction

• Cannot open Windows Firewall console.
• Uninstalling the sensor fixes the problem.

Environment

• CB Defense Sensor: All Versions
• CB Defense Web Console: All Versions
• Microsoft Windows: All Supported Versions
• Nutanix Virtual Machines

Cause

The cause of the problem is an incompatible RSC setting.

Resolution

RSC needs to be disabled Open PowerShell as Administrator and disable RSC:  Disable-NetAdapterRsc * Reboot the device  Open the Network Adapter properties > Advance tab Scroll down to Recv Segment Coalescing (IPv4) and Recv Segment Coalescing (IPv6) and confirm it is set to "Disabled"