I am having problem with Qualcomm Atheros AR8151 PCI-E-Gigabit-Ethernet-Controller (NDIS 6.30) as well. This began after I upgraded from Windows 7 to Windows 10. I am able to use wireless network just fine but not the Ethernet / wired connection. When I connect ethernet cable for internet access it says 'Unidentified Network' 'No Internet Access'.

Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20), Version 1.0.0.36 for Microsoft® Windows® 7

This utility will install the originally shipped version of the Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20) for the Sony VAIO® computers listed below.

The Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20) is for the yellow exclamation showed as a name “Ethernet Controller” in Device Manager window if the driver is uninstalled.

IMPORTANT NOTES: PLEASE READ CAREFULLY.

Atheros Ar8151gigabyte Ethernet Controller Driver Windows 10

Warning! This utility is only for use with the following Sony VAIO® Computers:
PCG;PCV;VGN;VGC;VGX;VPC;
Do not install this utility with any other model of computer (including other Sony computers sold worldwide).

Atheros Ar8151gigabyte Ethernet Controller Driver Download

During the installation of this update, be sure that you are logged in as the Administrator or as a user with Administrative rights.
To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
It is highly recommended that you print out these instructions as a reference during the installation process.

Download And Installation Instructions

Atheros Ar8151 Pci-e Gigabit Ethernet Controller Driver Win7

Please follow the steps below to download and install the AHDETH-00251394-0042.EXE program.

1. Download the AHDETH-00251394-0042.EXE file to a temporary or download directory (please note this directory for reference).
2. Go to the directory where the file was downloaded and double-click the AHDETH-00251394-0042.EXE file to begin the installation.
3. At the “User Account Control” window, click the “Yes” button.
4. At the “Select Country” screen, select the country for the installation and click the “Next” button.
5. At the 'Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20) for Microsoft® Windows® 7' window, click the “Next” button.
6. Read the Software License Agreement and click the 'I Agree' button.
7. At the 'Finish' screen, click the “Finish” button.
8. At the “This system must be restarted to complete the installation” screen, click the “OK” button to restart the system.

Qualcomm Atheros Ar8151 Gigabit Ethernet Controller Driver

Driver Atheros Ar8151 Pci-e Gigabit Ethernet Controller Win Xp

The installation of the Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20) is completed.