The IP address XXX.XXX.XXX.XXX you have entered for this network adapter is already assigned to another adapter <Name of adapter>. <Name of adapter> is hidden from the network and Dial-up Connections folder because it is not physically in the computer or is a legacy adapter that is not working. If the same address is assigned to both adapters and they become active, only one of them will use this address. This may result in incorrect system configuration.
Do you want to enter a different IP address for this adapter in the list of IP addresses in the advanced dialog box?
This is an annoying little message that you can click no on, and everything will still work fine. However, it will continue to pop up every time you go in and out of the network settings for that adapter. To get rid of this message, you need to remove the device the old NIC card using the directions below.
- Run "set devmgr_show_nonpresent_devices=1" from an administrative command prompt. (if that doesn't work for you, another option is to add "devmgr_show_nonpresent_devices" as a new environment variable with a value of 1)
- Go to Start > Run and enter "start devmgmt.msc"
- Click View > Show Hidden Devices
- Expand the Network Adapters
- Right-click the grayed out network adapter, then click Uninstall
