-Cannot rename this connection. A connection with the name you specified already exists. Specify a different name.
-The IP address XXX.XXX.XXX you have entered for this network adapter is already assigned to another ....
1. System properties > Advanced > Environment Variables...
2. On System variables, select New..., on Variable Name enter devmgr_show_nonpresent_devices
on Variable Value enter 1
3. On Device Manager, click on view, select Show hidden devices.
4. Expend Network adapters, uninstall hidden network.
Hyper-V (Microsoft Hyper-V Network Adapter)
Physical (Physical Network Adapter)
*Don't uninstall RAS Async Adapter or any other than Microsoft Hyper-V Network Adapter/Physical Network adapter.
