Skip to main content

Failed while adding virtual Ethernet switch

Well you know bad things happen right before you make a presentation.  I have no idea how this happened.  Tomorrow I am presenting PowerShell Desired State Configuration to my Advanced PowerShell class.  I’m going through a test run of my code and I lose my external internet connection in my VMs.  I am unable to create a new external VM switch connected to my wireless NIC on my Windows 10 Pro client.  Here is my error:

Failed while adding virtual Ethernet switch connections. Ethernet Port (long guid) bind failed: Catastrophic failure (0x8000FFFF)

Not funny!!!!!  I went through a lot of documentation which did not work.  Here is my final solution. 

Open the Network and Sharing Center
Click Change Adapter Settings
Open the properties of your wireless network adapter.
Click the Sharing tab.
Check Allow other network and users to connect through this computer’s Internet Connection.
Click OK.
Open the properties of your wireless network adapter.
Click the Sharing tab.
Uncheck Allow other network and users to connect through this computer’s Internet Connection.
Now go ahead and create you external VM Switch in Hyper-V

Comments

Balaz said…
Thank you for this.
Jason Robert said…
Saved me a lot of time here. Thanks for sharing!

Popular posts from this blog

How to list all the AD LDS instances on a server

AD LDS allows you to provide directory services to applications that are free of the confines of Active Directory.  To list all the AD LDS instances on a server, follow this procedure: Log into the server in question Open a command prompt. Type dsdbutil and press Enter Type List Instances and press Enter . You will receive a list of the instance name, both the LDAP and SSL port numbers, the location of the database, and its status.

How to run GPResult on a remote client with PowerShell

In the past, to run the GPResult command, you would need to either physically visit this client, have the user do it, or use and RDP connection.  In all cases, this will disrupt the user.  First, you need PowerShell remoting enabled on the target machine.  You can do this via Group Policy . Open PowerShell and type this command. Invoke-Command –ScriptBlock {GPResult /r} –ComputerName <ComputerName> Replace <ComputerName> with the name of the target.  Remember, the target needs to be online and accessible to you.

Error icon when creating a GPO Preference drive map

You may not have an error at all.  Take a look at the drive mapping below. The red triangle is what threw us off.  It is not an error.  It is simply a color representation of the Replace option of the Action field in the properties of the drive mappings. Create action This give you a green triangle. The Create action creates a new mapped drive for users. Replace Action The Replace action gives you a red triangle.  This action will delete and recreate mapped drives for users. The net result of the Replace action is to overwrite all existing settings associated with the mapped drive. If the drive mapping does not exist, then the Replace action creates a new drive mapping. Update Action The Update action will have a yellow triangle. Update will modify settings of an existing mapped drive for users. This action differs from Replace in that it only updates settings defined within the preference item. All other settings remain as configured on the mapped drive. If the