Symptoms
- The Loopback adapter is missing.
- The Loopback adapter is not functioning properly.
- No Loopback adapter.
Purpose
This article provides the steps to install and configure the Loopback adapter in a Windows virtual machine.
Resolution
To install the Loopback adapter in Windows XP:
- Click Start > Control Panel > Add Hardware.
- Click Next on the introduction dialog box.
- Select Yes, I have already connected the hardware and click Next.
- Select Add a new hardware device, and click Next.
- Select Install the hardware that I manually select from a list (Advanced), and click Next.
- Select Network adapters, and click Next.
- Select Microsoft as the manufacturer, select Microsoft Loopback Adapter as the adapter, and click Next.
- Click Next to confirm the installation.
- Click Finish to complete the installation.
To install the Loopback adapter in Windows Vista, 7, 8, 10, Server 2008 or Server 2012:
- Click Start, then type cmd in the search box.
- When cmd.exe appears, right-click it and choose Run as administrator.
- In the command prompt, type hdwwiz.exe and press Enter.
- Click Next.
- Select Install the hardware that I manually select from a list (Advanced), then click Next.
- Select Network adapters, then click Next.
- Select Microsoft as the manufacturer, select Microsoft KM-TEST Loopback Adapter as the adapter for Windows 10, then click Next.
- Select Next to confirm the installation.
- Select Finish to complete the installation.
To configure the newly created adapter:
- Click Start > Control Panel > Network Connections.
- Seleccione la conexión recién creada (denominada Conexión de área local #, donde # es su número de orden).
- Haga clic con el botón derecho del ratón en la conexión seleccionada y elija Propiedades en el menú.
- Confirme que Microsoft Loopback Adapter o Microsoft Loopback Adapter # aparece en el campo Conectar usando:.
Si no es así, vuelva al paso 2 y reintente las propiedades para otro adaptador.
- Deseleccione todo excepto el Protocolo de Internet (TCP/IP).
- Seleccione el Protocolo de Internet (TCP/IP) y haga clic en Propiedades para abrir las Propiedades del Protocolo de Internet (TCP/IP).
- Seleccione Usar la siguiente dirección IP. Rellene los campos Dirección IP y Máscara de subred.
Ejemplo: 10.10.10.10, 255.255.255.0
- Haga clic en Avanzado para abrir Configuración avanzada de TCP/IP.
- Cambie a WINS y seleccione Desactivar NetBIOS sobre TCP/IP.
- Haga clic en Aceptar para cerrar Configuración avanzada de TCP/IP.
- Click OK to close the Internet Protocol (TCP/IP) Properties.
- (Windows XP only) Deselect Notify me when this connection has limited or no connectivity to remove the connection warning icon from the system notification area.
- Click OK to close the connection properties.