ESXi transport node preparation process stuck at 23% in NSX

Products

• VMware NSX

Issue/Introduction

• When attempting to prepare ESXi hosts for NSX within a cluster managed by vSphere Lifecycle Manager (vLCM), the installation process fails or stalls 
• ESXi transport node preparation is stuck at 23% as in the below screenshot

Environment

VMware NSX

Resolution

Prerequisites:

• Ensure you have administrative access to both vCenter Server and NSX Manager.
• Verify the cluster is enabled for vLCM.

Procedure:

1. Maintenance Mode: Place the affected ESXi host into Maintenance Mode.
2. Isolate Host: Move the host out of the vLCM-enabled cluster to the Datacenter level in the vSphere inventory.
3. Cleanup Stale Registration:
   • Log in to the NSX Manager UI.
   • Navigate to System > Fabric > Hosts > Other Nodes.
   • Locate the host and perform a Force Delete to clear stale registration data.
4. Reboot Host: Perform a physical or soft reboot of the ESXi host to ensure a clean state.
5. Re-add to Cluster: Move the host back into the vLCM-managed cluster.
6. Validate: Confirm the ESXi transport node preparation completes successfully. 

Additional Information

If the KB does not resolve the issue, and if you need further assistance, see Contact Broadcom Support.

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