Virtual NIC settings on a Windows guest are lost after a virtual hardware upgrade (1015572)
After upgrading a Windows virtual machine from hardware version 4 to hardware version 7, virtual NIC settings (such as static IP configuration) are lost.
This issue occurs when the virtual network card configured in the virtual machine is moved to a different position on the virtual PCI bus and results in the guest Operating System treating the existing virtual network card as a new hardware device.
Overview of the VMUpgradeHelper Tool
To workaround this issue, use the VMUpgradeHelper service before performing the virtual hardware upgrades on a virtual machine. For the updated version of VMware Upgrade helper, see:
It allows you to save the current configuration of any virtual network cards to the registry.
It allows you to restore a previously saved configuration, overwriting the current configuration of the virtual network cards.
Note:The VMUpgradeHelper service is only available with the latest version of VMware Tools, so you must upgrade VMware Tools before upgrading from a hardware version 4 virtual machine to a hardware version 7 virtual machine. For more information, see: