This is because a new network interface is found after the P2V conversion. The new interface is that of the VMware network adaptor.
It sounds like in your case that the old network interface is still on the VM. As such you will need to remove this.
You need to complete the following steps, which by the way are considered best practices for any P2V task as a post P2V step
Go to Start, right-click My Computer, and select Properties.
In the System Properties dialog box, select the Advanced tab and click the Environment Variables button.
In the Environment Variables dialog box, locate the System Variables panel and click New.
In the New System Variable dialog box, type
DEVMGR_SHOW_NONPRESENT_DEVICES in the Variable Name text box and type 1
in the Variable Value text box.
Click OK twice.
To view the non-present devices, go to Start, right-click My Computer, and select Manage.
Click Device Manager, pull down the View menu, and select Show Hidden Devices
Now that these steps are complete remove the old network adaptor from the VM and restart the VM. You should not be able to configure the VM's nic with the IP address.
Carl
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