VirutalMachine is stll connecting to previous portgroup which no longer exist or renamed or removed, as appeared in ghost portgroup

Issue : VM had been changed to new portgroup but as in sample picture shown below, vm is still showing ghost portgroup connection.

Solution : Previous snapshot is remembering old portgroup name and as result there is a ghost port group in vm network connection. To solve this issue, remove snapshots from VM’s snapshot manager.  Keep in mind that, do not miss use snapshot as your backup. Remove snapshot whenever after using it.