How to Fix Unable to Configurate Network LAN Access in System Configuration->Network in Catalina

How to Fix Unable to Configurate Network LAN Access in System Configuration->Network in Catalina

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

• Confirm your hardware specifications (CPU, GPU, Motherboard).
• Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

1. Verify your network controller model (Intel, Broadcom, Realtek).
2. Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
3. Clear network interfaces and reset NVRAM if changes don't apply.

Verification

• Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

H,i all!

I have:

- Catalina working fine under OpenCore 0.6.7

- Controller Ethernet port Intel I225-V working fine in Windows (see attached photo)

I'm trying to connect into Catalina. I have from System Configuration->Network the screen showing in the attached photo

Unfortunately I'm unable to configure the network LAN access. I'm unable to find LAN parameters. Dial-up only.

Could you help me please?

Thanks in advance.

Author: iapaus