NSX Host Preparation Fails Timeout connection to vCenter IP

Products

• VMware NSX

Issue/Introduction

Host Preparation for NSX, hosts say "Not Configured"

Installation Status is "Not Ready"

Selecting "Not Ready" for further details, each host reports "Timeout connecting to "

Environment

VMware NSX Data Center for vSphere 6.x

Cause

This issue occurs if  IP address of the vCenter has been changed, and the hosts are attempting communication to a vCenter that is no longer there.

Resolution

To resolve the issue, change the vCenter IP for these hosts in this cluster:

Navigate to,​ Hosts and Clusters -> vCenter -> Right click, Settings -> General -> "Edit" button -> select "Run time settings" -> Modify the vCenter IP to the new address