no network on 12 Elitebook 840 G3

[holdrio]

We deployed a few laptops as mentioned in the title.

We deploying Windows 7 with a professional software and the laptops are fully installed. After delivering to the end users they cannot connect to LAN.

One of them I tested it in my office with the dockingstation 2013 UltraSlim and without. No connection on different cables (ASDL and Intranet LAN). We can not see any LED light up So I reset the UEFI to factory default and update the UEFI manually to 1.39. Installing a SSD with the original HP Build win 10.

Ping on Loopback interface is answering but no other connections are possible.
Anyone here has an idea what else I could do before I replace the motherboards?
Thanks for help.

[Lil_Boy_Blue · Accepted solution]

Hi

I may get egg on my face and look like an omelette, but...

https://support.hp.com/us-en/product/hp-elitebook-840-g3-notebook-pc/7815294

I suggest 3 pings

127.0.0.1

then to MY network gate way 192.168.0.1

and finally to the internet beacon- 13.107.4.52

However what was the original OS?  and the SKU: please.

Because W10 uses this

HP Wireless Button Driver

2.1.9.1 Rev.A

1.0 MB

Mar 25, 2019

Download

via the F12 button, but it is not used/needed/available for Windows 7.

As to the LAN W10 and W7 have different drivers.

Intel I219LM/V Gigabit Ethernet Driver for Microsoft Windows

12.18.8.9 Rev.A

Intel I219LM/V Gigabit Ethernet Driver for Microsoft Windows

12.17.8.7 Rev.B

[holdrio]

Hi Lil_Boy_Blue

Thanks for your answer.

<Installing a SSD with the original HP Build win 10.> means I tested it with an OS that was delivered from HP. I assume that all drivers are installed correctly.

The only reason for a ping to localhost was to see if the network stack works.

At the end I organized the exchange of the maniboards for the first laptop.

Thank you