fix Ethernet adapter

Question

I bought a Synology NAS and established a Ethernet connection on my PC NAS is visible on PC but not on my NUC box G3 The Adapter is faulty and can't find the right driver

Answer 1

Hi Klaus Reiher,

Welcome to Microsoft Q&A!

I understand it can be confusing how your Synology NAS appears on your PC, but not on your Intel NUC G3. To better help you, can you clarify if Windows is reporting the Ethernet adapter as faulty or missing a driver? And what is the behaviors it's showing? Any error codes or messages? While waiting for more information, here are some basic things to check:

1 - Install the correct Intel LAN driver

• Visit Intel's official support page > search your NUC G3 model.
• Download the Ethernet (LAN) Adapter driver for Windows 11.
• Install the driver, then restart the NUC to see if it helps.

2 - Verify the NUC is receiving a valid IP address

• Press Win + X > choose Terminal (Admin) > run: ipconfig
• Under Ethernet adapter, check the values:
  • A real IPv4 address (e.g., 192.168.x.x) > OK
  • A different address (e.g. 169.254.x.x)> DHCP failed

3 - Test connection to the NAS directly

• Press Win + R > Enter the NAS IP, for example \192.168.1.50
• If this opens the NAS folder, the adapter is now functioning.

I hope the information above helps. Please do not hesitate to let me know if you'd like me to assist with any steps!

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Answer 2

To fix the Ethernet adapter issue on your NUC box G3, you can try the following steps:

1. Check Device Manager: Open Device Manager and look for any issues with the Ethernet adapter. If you see a yellow exclamation mark, it indicates a problem with the driver.
2. Update Drivers: You can manually update the driver for your Ethernet adapter. Right-click on the adapter in Device Manager and select "Update driver." You can choose to search automatically for updated driver software.
3. Uninstall and Reinstall the Adapter: If updating the driver does not work, you can uninstall the Ethernet adapter. Right-click on the adapter in Device Manager, select "Uninstall device," and then restart your computer. Windows should automatically reinstall the driver.
4. Use the DevCon Utility: If the adapter is ghosted (not visible), you can use the DevCon utility to remove it from the registry. This can help in reinstalling the driver correctly. You can download the DevCon tool from Microsoft and follow the instructions to remove the ghosted adapter.
5. Check for Windows Updates: Ensure that your Windows operating system is up to date, as updates can include important driver updates for hardware.
6. Third-Party Drivers: If the built-in drivers do not work, check the manufacturer's website for the latest drivers specific to your Ethernet adapter.

If these steps do not resolve the issue, you may need to consider hardware issues with the adapter itself.

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References:

• Error message when you try to set an IP address on a network adapter
• Ethernet measures