Remote Network Driver Interface Specification (RNDIS) is a Microsoft proprietary protocol. Devices using a USB connection for downloading and debugging of OS image from Platform Builder use this driver to emulate a network connection. RNDIS driver is required for this purpose.

RNDIS driver is a part of the Windows 7 operating system, but the OS fails to detect it automatically. The following steps will help the user to install the RNDIS driver.

1. After the WiFiG25 is connected to the development PC and boot into the system, wait 20s, then Windwos OS will automatically search for the RNDIS driver. After it fails to find the driver, the following message will be shown.

2. Right click on Computer and select Manage. From System Tools, select Device Manager. It will show a list of devices currently connected with the development PC. In the list, RNDIS Kitl can be seen with an exclamation mark implying that driver has not been installed.

3. Right click on it and select Update Driver Software... When prompted to choose how to search for device driver software, choose Browse my computer for driver software.

4. Browse for driver software on your computer will come up. Select Let me pick from a list of device drivers on my computer.

5. A window will come up asking to select the device type. Select Network adapters, as RNDIS emulates a network connection.

6. In the Select Network Adapter window, select Microsoft Corporation from the Manufacturer list. Under the list of Network Adapter:, select Remote NDIS compatible device.

7. The RNDIS Kitl device is now installed and ready for use.

8. Then the PC will have two Ethernet in windows system after you install it success, one is the PC real Ethernet port, another is the visual Ethenret from the WiFiG25, the two Ethenret port may affect the Internet connect for the PC. so you should run the follow command line on the Windows System Command line to close the Visual Ethenet gateway.

route delete 0.0.0.0 192.168.3.1

Then your PC can surf the Ethernet again, if you can't know how to run the command line in Windows, download the closegateway.bat and double-click the bat file to run it, the gateway will be set auto.