VxRail: Cannot migrate VM after uninstalling the NSX-T manager

The customer is unable to migrate the VM from the original host to another host.

vDS shows the target port group:

Currently connected network interface "Network adapter 1" uses network XXXXX (Vmware HCIA Distributed Switch)", which is not accessible.

Checking the vDS status, all nodes show "down" status of vDS.

There could be several causes for this issue:

1. Customer may not have followed the VMware procedure to uninstall NSX-T.
2. When deleting the NSX-T manager, the N-vDS continues to try and communicate with the NSX-T manager. This causes the vDS status of the host to show a status of "down."

See VMware document https://docs.vmware.com/en/VMware-NSX/4.1/installation/GUID-9C0927E8-F96B-494F-9799-C45DC1ABD9E4.html for more information.

If the customer has an NSX-T VM backup, restore NSX-T manager. Follow the VMware procedure to safely remove NSX-T solution afterwards.
If the customer has no backup, create a new vDS and migrate all VMkernel of the hosts and VM networking to a new vDS.