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    Configuring USB Interfaces

    The AirLink router is equipped with a USB 3.2 Type-C Gen 1 (SuperSpeed 5 Gbps) port. This page describes how to:

    • configure the USB interface
    • create a USB network connection on a Windows or macOS computer.

    Configuring a USB Interface

    • ENABLE or disable the interface. The USB interface is enabled by default.
    • LAN SEGMENT: Edit the LAN segment (click ) or select or create a different LAN segment (click ) for the interface.
    • MTU AUTO DETECT is always On when USB is connected to a LAN segment.
    • MTU: When the interface is part of a LAN segment, MTU is set to Auto.

    Configuring a USB Network Connection to a Computer

    The XR system in the examples below has the default LAN address set to 192.168.80.0/24 and IPv6 is enabled.

    Windows 10 Using Automatic Updates

    1. Plug in a data-capable USB-C cable between your Windows 10 computer and the XR router. Your computer will require an Internet connection to proceed. (Note: Some USB-C cables are power-only, and will not work for a data exchange).

    2. Your Windows 10 computer indicates that it is setting up a virtual COM port, and confirms when the installation is complete. You can verify the status in the Notification Center.

    3. Go to Windows Updates and check for Optional Updates and select the Acer Incorporated – Other Hardware – USB Ethernet/RNDIS Gadget. (This may not be available if your computer uses an internal corporate Windows update server.)

      Note: The USB Ethernet/RNDIS Gadget can also be downloaded from Microsoft.

    4. After this initial setup, you can use the Device Manager to verify the presence of the “USB Ethernet RNDIS Gadget” in the Network Adapters list.

    5. To confirm that the network is available and the adapter has been assigned address(es), open a Command prompt window and type ipconfig.

    Windows 10 / 11 Using Downloaded Driver

    1. Open the Microsoft Update Catalog and download the driver package for Windows 8.1 and later.

    2. The package will be in the form of a CAB file. Double-click the package to view the compressed contents, and extract both files to a location on your drive.

      • You will need to navigate to that location later to specify the driver.
      • If the security catalog file is not found with the driver INF file during installation, the driver will be seen as unsigned and Windows will reject it.

    3. Open Device Manager (click the Windows Start button, type “Device” and select the Device Manager application).

    4. Expand the Ports (COM & LPT) section and note what numbered COM ports are shown. Another COM port will appear after you plug in the USB-C cable between the laptop and the XR series router.

    5. Plug in a data-capable USB-C cable between your Windows 11 computer and the XR router. (Note: Some USB-C cables are power-only, and will not work for a data exchange.)

    6. Check to see what new COM port has appeared.

    7. Right-click the new COM port and select Update Driver.

    8. Click Browse my computer for drivers.

    9. Click Let me pick from a list of available drivers on my computer.

    10. Click Have Disk… and browse to the location of the extracted RNDIS.INF file.

    11. Select the RNDIS.INF file and click Open.

    12. Once the driver is installed, reboot your computer to finalize the installation.

    macOS (tested on 14.4 Sonoma)

    1. Plug in a data-capable USB-C cable between your MacOS computer and the XR router. Your computer will require an Internet connection to proceed. (Note: some USB-C cables are power-only, and will not work for a data exchange).

    2. In System Preferences, open the Network center and verify that the RNDIS/Ethernet Gadget appears and is connected.

    Wired network connection over USB-C is not supported on iOS devices (iPad and iPhone).

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