Lost ethernet connection Sierra update

Hello everyone,

First, thanks in advance for your help.

I recently updated my hack from Mavericks to Sierra (10.12.5). Except a little issue with a driver in my EFI (had to replace something with this : OsxAptioFix2Drv-free2000.efi), everything went pretty fine. After installation, Sierra booted fine, and except some USB issues that I still have to fix, everything worked as expected. And I had internet access via Ethernet. I did some downloads to reinstall 1 or 2 softwares, and then I launched a Time Machine saving. During this process, I went elsewhere for about 2 hours. And when I came back, no ethernet connection anymore. When the cable is plugged in, the network panel even tells me that no cable is plugged. Tried to use my Time Machine and restore but it did nothing. I just can't understand what changed and made my ethernet not working.

Here what I tried to do so far, without success : - update AppleIntelE1000e kext - change for IntelMausiEthernet kext - run ' sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist ' - rebuild caches - delete the Ethernet connection and reboot, but the OS doesn't automatically recreates it, and I can't do it manually since it's not giving me the option in the network panel - change cables etc...

And the ethernet controller works because I can use it on my windows partition.

This whole thing is driving me crazy since everything worked just fine just after the update, so I don't know what happened !

Thank you for your help !

My setup : iMac 14,2 - Gigabyte GA-H87-D3H - Core i5-4670K @ 3.40 GHz - 4x 4 Go Corsair DDR3 1600 MHz - MSI GeForce GT 640 2GB - Sierra 10.12.5 - Clover Bootloader (r4114) Kexts installed : FakeSMC - IntelMausiEthernet

submitted by /u/HubiWiWi
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