Cannot Create External Virtual Switch (Grayed out) Network ObjectNotFound New-VMSwitch : Cannot find a physical network adapter #hyperv #winserv   5 comments

After you created a hyper-v server and did some configurations you are ready to create some networking.

But after running some PowerShell scripts you have errors on creating a external vswitch.

PS C:\Users\Administrator> New-VMSwitch -Name HVNET -NetAdapterName "ethernet 3" -AllowManagementOS $True -MinimumBandwidthMode Weight
New-VMSwitch : Cannot find a physical network adapter named Realtek PCIe GBE Family Controller.

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The nic is there and working I updated the nic with new drivers uninstalled still the same problem.

Lets see if the nic is there :  Get-NetAdapter |? status
 
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Present and up. lets check this with WMI , If the nic is not there or not UP make sure it is there and UP. Uninstall the network device and scan for new devices.

WMIC NICCONFIG GET Description,SettingID

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We could find this in the register if needed. But lets see if the bindings are ok

If the Hyper-v Extensible Virtual Switch Protocol is not there you can not Create a external VSwitch !

Easy thing to do is add the Vswitch protocol !

image  image

Now that the Protocol is there you can create the external vswitch and create a working Hyper-v Server!

There are multiple errors or issues that can avoid you for creating a external vswitch.

tools like nvspbind are helpful more info on this : http://blogs.technet.com/b/jhoward/archive/2010/01/25/announcing-nvspbind.aspx

Or see my older blog post on Windows Server 2012 R2 update thoughts hyper-v virtual Ethernet adapter network cable unplugged

https://robertsmit.wordpress.com/2013/09/28/windows-server-2012-r2-update-thoughts-hyper-v-virtual-ethernet-adapter-network-cable-unplugged/

Posted March 24, 2014 by Robert Smit [MVP] in Hyper-V

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