Ethernet Card No Longer Visible or Working

[omniscient21]

Hi, I recently made the trek to El Capitan from Yosemite and, after an intense amount of effort, had a functioning El Capitan build running with the AppleIntelE1000e v3.2.4.2 driver installed via Clover.

At first I was not able to log into the App Store because my ethernet card was not visible or loading. So I
followed instructions on various forum posts to delete items in Networking, apply changes, delete the network file from /library/preferences/system configuration/ and then reboot. That worked and my ethernet card reappeared and I was able to get back into the App Store.

However I then had to change my system definition for an unrelated reason, and the card again disappeared. I changed the definition back to MacPro 3,1 and re-executed the steps above to re-establish the internal ethernet card as en0. However, after many attempts, I have not been able to see the ethernet card in the Network devices panel.

I have tried all of the drivers listed within Clover, and the RealtekRTL81xx-0_0_0_90 driver, but nothing has worked. I am able to see all of the other devices in the Networking panel, but just not the ethernet card.

The ethernet is an internal Intel® GbE LAN chip (10/100/1000 Mbit) on a Gigabyte GA-Z97X-UD7 TH mother board. This build is straight out of the Tonymac customac specs --nothing exotic at all.

System Report shows the following: This computer does not appear to have any PCI Ethernet cards installed.

I've check BIOS and it indicates that the LAN card has a MAC address, etc. So it appears to be fine from a hardware standpoint.

I'm not sure where to go on this next, but any help would greatly, greatly be appreciated.

Thank You
Marc

 

[P1LGRIM]

Hi, I recently made the trek to El Capitan from Yosemite and, after an intense amount of effort, had a functioning El Capitan build running with the AppleIntelE1000e v3.2.4.2 driver installed via Clover.

At first I was not able to log into the App Store because my ethernet card was not visible or loading. So I
followed instructions on various forum posts to delete items in Networking, apply changes, delete the network file from /library/preferences/system configuration/ and then reboot. That worked and my ethernet card reappeared and I was able to get back into the App Store.

However I then had to change my system definition for an unrelated reason, and the card again disappeared. I changed the definition back to MacPro 3,1 and re-executed the steps above to re-establish the internal ethernet card as en0. However, after many attempts, I have not been able to see the ethernet card in the Network devices panel.

I have tried all of the drivers listed within Clover, and the RealtekRTL81xx-0_0_0_90 driver, but nothing has worked. I am able to see all of the other devices in the Networking panel, but just not the ethernet card.

The ethernet is an internal Intel® GbE LAN chip (10/100/1000 Mbit) on a Gigabyte GA-Z97X-UD7 TH mother board. This build is straight out of the Tonymac customac specs --nothing exotic at all.

System Report shows the following: This computer does not appear to have any PCI Ethernet cards installed.

I've check BIOS and it indicates that the LAN card has a MAC address, etc. So it appears to be fine from a hardware standpoint.

I'm not sure where to go on this next, but any help would greatly, greatly be appreciated.

Thank You
Marc

Try the IntelMausiEthernet.kext

 

[omniscient21]

Unfortunately that didn't work. What else might I try?

Thanks,
Marc

 

[omniscient21]

Would it make sense to remove the WIFI board and go through the process again? Is it possible that the WIFI board is somehow interfering with the ethernet detection? I had it working fine under Yosemite, so not sure if something has changed in El Capitan.

Any insight on this would be greatly appreciated.

Thank you,
Marc

 

[TheCreed]

I just recently found out I have the same issue. iMessage stopped working so I checked my to see if my Ethernet card was en0 and to my surprise it showed that I didn't have a ethernet card. I checked under network settings and it told me that the ethernet cable was unplugged. I don't even know when this occurred because my Wi-Fi card took over.

I had OS X El Capitan installed on an old HDD that I was not using, and Ethernet works fine on that instal. I really don't feel like reinstalling just to get the ethernet working so if you find out how to fix it let me know.

 

[TheCreed]

I just got it to work literally 5 minuets after my last post.

The first thing I wanted was to get the ethernet card to show up, so I went to my working instal on my old HDD. I copied the NetworkInterface.plist and Preferences.plist to flash drive, then went on my main instal on my SSD and pasted them back in. After a restart the ethernet card showed in network settings, but it showed it as being unplugged.

Next I downloaded a program called Kext Wizard, then used that program to instal the ethernet kext to S/L/E. After the restart, ethernet showed up as connected.

I still don't know why ethernet kext was not starting up while being in the kext folder for clover.

You might be able to get away with just doing step 2.