Formerly just "Microsoft Loopback Adapter," it is now labeled "Microsoft KM-TEST Loopback Adapter" in Windows 11. Top Use Cases for Loopback Adapter in Windows 11
The loopback adapter is considered "legacy hardware" and must be added manually through the Windows Hardware Wizard. How to create a Microsoft loopback adapter in Windows 11
Locate the newly created connection (it usually defaults to an "Ethernet" name with a subtitle like Microsoft KM-TEST Loopback Adapter Right-click the adapter and select . Double-click on Internet Protocol Version 4 (TCP/IPv4) . microsoft loopback adapter windows 11
The installation is done through the since it is not a physical "piece" of hardware you can plug in.
The Add Hardware Wizard will open. Click Next . Formerly just "Microsoft Loopback Adapter," it is now
The (formerly the Microsoft Loopback Adapter) is a virtual network interface used for testing network configurations in a sandbox environment without needing a physical network connection. Step-by-Step Installation Guide Open the Add Hardware Wizard : Press Win + R on your keyboard to open the Run dialog.
To verify, open → Network and Sharing Center → Change adapter settings . You’ll see a new connection named “Ethernet X” or “Local Area Connection” . Double-click on Internet Protocol Version 4 (TCP/IPv4)
Microsoft Loopback Adapter in Windows 11 Microsoft Loopback Adapter (officially renamed to the Microsoft KM-TEST Loopback Adapter
In conclusion, the Microsoft Loopback Adapter is a useful virtual network interface card that provides several benefits to users, including a virtual network interface, testing and troubleshooting capabilities, and no requirement for physical hardware. The adapter has several use cases, including network testing and development, virtualization, and security testing. Configuring the Loopback Adapter in Windows 11 is a simple process that can be completed in a few steps. Overall, the Microsoft Loopback Adapter is a valuable tool for network administrators, developers, and security professionals who need to simulate network connections and test network configurations.
In Windows 11, the legacy "Add Hardware" wizard in Control Panel is hidden or deprecated. The most reliable method to install this adapter is via the Device Manager.
Press Win + R , type ncpa.cpl , and hit Enter to open .