ESXi Host NSX Install Failed: Failed to get response from NSX-SFHC component

Products

• VMware NSX
• VMware vSphere ESXi 8.0
• VMware vCenter Server 8.0

Issue/Introduction

ESXi hosts report an "Install Failed" status in the management UI during patching or cluster configuration. This behavior correlates with intermittent vCenter disconnection and management communication errors between transport nodes and NSX Managers. The error Failed to get response from NSX-SFHC component appears when the service fails to initialize due to blocked or restricted management traffic. Identifying this communication gap is essential for restoring stability, as the issue typically originates from physical network configuration rather than software defects.

Environment

VMware ESXI 8.x

VMware NSX 4.x

VMware vCenter 8.x

Cause

Upstream physical network connectivity loss between ESXi hosts and NSX Managers prevents management traffic. This Layer 2 connectivity disruption causes the NSX-SFHC component to timeout, resulting in the "Install Failed" status.

Resolution

Address the upstream physical network issue to ensure stable management connectivity.

Workaround: 

• If immediate host recovery is required, vMotion the NSX Manager VMs to a different cluster segment to restore network communication paths.

Additional Information

This issue is not a software defect. If the behavior persists after correcting physical network configurations, capture logs and open a support request for further analysis.