Just came across an issue in Hyper-V: I was making changes to a network adapter’s binding in Hyper-V manager under the Virtual Network Manager when MMC crashed, closing out Hyper-V manager. Upon reopening, trying to bind the virtual switch to an External Adapter resulted in the following error:
Virtual Network Manager
Error Applying New Virtual Network Changes
Setup switch failed.
Cannot bind to ‘HP NC373i Multifunction Gigabit Server Adapter #8’ because it is already bound to another virtual network.
Searching the error resulted in the following KB, KB2486812:
The format is:
“Friendly NIC Name”
“Local Area Connection”:
disabled: ms_netbios (NetBIOS Interface)
disabled: ms_server (File and Printer Sharing for…
After finding the offending adapter, run:
nvspbind /u “Friendly NIC Name”
This will scrub the binding and allow you to try again via the GUI or Powershell.