The host is disconnected in vCenter. It needs to be removed from NSX cluster.
Environment
3.2.2
Cause
The host is no longer accessible
Resolution
Detach the Transport Node Profile from the Cluster:
Navigate to System > Fabric > Profiles > Host Transport Node Profiles in the NSX-T Manager UI.
Select the relevant Host Transport Node Profile.
Detach the profile from the cluster to which it is associated. This action will prevent newly added hosts from automatically becoming transport nodes; however, it will not affect existing transport nodes.
Remove NSX from the Individual Node:
Go to System > Fabric > Nodes > Host Transport Nodes in the NSX-T Manager UI.
Select the specific host you want to remove.
If the Transport Node Profile is not attached to the cluster, you'll see the "Remove NSX" option.
Click "Remove NSX" and confirm the action.
This will remove the NSX configuration from the host.