LAN doesn't work after upgrading 7 to 10 HP Proliant server

Hello!

At work I have an HP Proliant server which was running Windows 7 and I recently upgraded (in-place upgrade) to Windows 10 Fall Creator's Update build v1709. Everything is OK except the network controller! No matter what drivers I tried (from WU, directly from HP, Snappy etc), the network card is "working OK" but I keep seeing the "Lan cable not connected" message and I have no Internet access. I managed to connect to the Internet using a USB Wi-Fi dongle, but I would like to make the onboard LAN work. Of course formatting and clean-installing Windows 10 is out of the question since we have a lot of data and applications and not time for backup and reinstalling everything. Please provide some solution that I can follow without format!

Thank you in advance.

The part number of the server is 658553-421, if you need some other information let me know. If that matters, the computer hanges for several seconds when I disable or enable the LAN adapter.

I assume you have tried another network cable, does the port on router show active? From cmd prompt type ipconfig /all post results

No haven't tried another network cable, but it is the same cable that worked fine back in Windows 7, seems weird. I was remotely connected with TeamViewer so I could do the upgrade at weekend from my home. After the first restart I lost access. When back at work on Monday, I saw the network didn't work with "cable not connected" error. So it is rather unlikely that the cable is faulty. Device Manager shows all devices (even hidden ones) installed OK, including of course the Ethernet adapter. No unknown devices, not exclamation marks (!), nothing suspicious. When running Snappy to try installing a new LAN driver, I noticed that is also suggests to update the AMD chipset driver. Of course I don't dare do it and cause havoc! I might try it at weekend, but no way doing that in the middle of the week!


Thank you for your quick replies

PS: Putting the P/N (658553-421) in Hewlett Packard Enterprise (HPE) shows that the model is HP ProLiant N40L server and the network controller is described as "Embedded NC107i PCI Express Gigabit Ethernet Server Adapter" (this is actually some Broadcom device), if that helps. Of course no drivers for Windows 10, only for Windows 2003 Server or 2008 Server or 2012 Server which I have already tried, didn't work. I can do my job with the USB Wi-Fi dongle, and they say "if it works, don't fix it", but if there is any way to make it work (other than a clean installation), I would like to know it! Thanks.

Well I might try that and see...

I tried the complete shutdown and changing the Ethernet cable, didn't work. I read in some forum that this is a known issue for HP ProLiant Servers (upgrading from Windows 7 to 10 makes the LAN not working due to some incompatibility) and one poster said he solved the issue by updating the BIOS. Of course this is too risky and I will try it as a last resort. I also searched in Google with the vendor ID and device ID and found out this is a Broadcom BCM55... (not remember the part number right now). I found a driver that supposedly works in Windows 10, it also installed some managing utility in Control Panel, but made no difference, the LAN doesn't detect the cable and doesn't work. It seems there might be some registry setting or other cure, no driver I tried so far works. I just wait for your suggestions.

Thank you.

I already use a USB Wi-Fi dongle to connect to the internet, no need to install any new card. I have already tried some drivers from HP, but I will visit the link you gave me later at work and see if I can find anything. Windows server drivers should also work in respective Windows desktop versions (server 2008 or 2012 driver should also work in Windows 7 and 8 and 10). Thank you.