macOS Tahoe and NO ETHERNET! I218-LM or RTL8125.

[Ginger Geek]

I had a fully working Hack until stupidly I hit the update button, when the installer finished downloading it did not even give me chance to stop it... So I went with it. 

I am running an old HP Z440 and after the on board Ethernet stopped working I tried the PCIe card RTL8125 and that is not working either.

 

Does any one have any similar issues or know fixes as I have found some posts on the Apple forum but noting on the Hackintosh side. 

 

If any one can help, please do. 

[bluenote56]

On 10/5/2025 at 9:56 PM, Ginger Geek said:

I had a fully working Hack until stupidly I hit the update button, when the installer finished downloading it did not even give me chance to stop it... So I went with it. 

I am running an old HP Z440 and after the on board Ethernet stopped working I tried the PCIe card RTL8125 and that is not working either.

 

Does any one have any similar issues or know fixes as I have found some posts on the Apple forum but noting on the Hackintosh side. 

 

If any one can help, please do. 

Try this even if it seems strange it worked for my ethernet. 1) Terminal sudo shutdown -h now 2) nvram reset at boot 3) boot

 

[Ginger Geek]

1 hour ago, bluenote56 said:

Try this even if it seems strange it worked for my ethernet. 1) Terminal sudo shutdown -h now 2) nvram reset at boot 3) boot

 

It was actually Little Snitch from my previous macOS installation. Something to do with how it hooks into the network stack.

I wipe the drive completely and did a clean install.. So now I have a I219-LM and a RTL8125 working. 

I also had to update the SSDT-UIAC.aml in macIASL and my USBport.kext to re-enable sleep/wake but the old z440 is now runing perfectly. 

 

Thanks for the response!!