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2012 R2 Hyper-V Virtual Switch Refuses to Be Created -- Error Messages Not Especially Helpful RRS feed

  • Question

  • Windows Servers 2012 R2 Standard
    4 NICs 

    Windows 8.1 is guest of the host 

    Hyper-V
    Virtual Switch Manager
    External
    Create Virtual Switch
    External network
    Choose a NIC that is connected to the physical Ethernet switch but otherwise unused
    Tick Allow management operating system to share this network adapter
    Untick everything else
    Click Apply
    "Error applying Virtual Switch Properties changes"
    "Failed while adding virtual Ethernet switch connections."
    "External Ethernet adapter "<name-of-adapter>" is already bound to the Microsoft Virtual Switch protocol."
    Close
    Cancel
    Control Panel\Network and Internet\Network Connections
    Change Properties of NIC to untick Virtual Switch protocol
    Repeat steps as above
    "Virtual Switch Manager for <name-of-server>"
    "Error applying Virtual Switch Properties changes"
    "An internal error occurred while processing the results of creating a new virtual switch."
    "To refresh the results, close and then reopen this window."
    Close
    Dead in the Water
    An internal error occurred while processing the results of creating a new virtual switch.  To refresh the results, close and then reopen this window.

    The first one is to use a tool called “nvspscrub.js”. Download nvspscrub.js then from cmd run: “cscript nvspscrub.js”, this will delete all vswitches, virtual NICs in the parent partition and will unbind the switch protocol from all physical NICs.

    This script aborts when a class turns up undefined.  Maybe this old script applies solely to Windows Server 2008.  Dunno.

    NVSPbind

    What I do now?

    It is an internal error.  Internal to what? 


    MARK D ROCKMAN

    Friday, December 12, 2014 2:40 AM

All replies

  • Hi Mark,

    I just came across the same issue!
    After troubleshooting, I deleted all my Virtual Switches and reinstalled my WiFi and Ethernet NIC drivers.

    I'm now able to create the Virtual Switches without error.

    Hope this helps.

    Regards

    Lee


    • Edited by _eredn Thursday, January 29, 2015 10:51 AM
    Thursday, January 29, 2015 10:50 AM