You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Ethernet not showing; Thunderbridge? appears in network

I cannot connect to my Ethernet. Cable is fine. Had my provider check it. Mac OS Catalina. I went through the steps of turning off and restarting and removing Ethernet but unable to add it back.

iMac 21.5″ 4K, macOS 10.15

Posted on Jun 10, 2023 4:07 PM

Reply
6 replies

Jun 10, 2023 4:39 PM in response to JBS5863

About this Mac>System Report>Hardware>Ethernet Cards, do you see anything like this?


Broadcom 57766-A1:


 Name: ethernet

 Type: Ethernet Controller

 Bus: PCI

 Vendor ID: 0x14e4

 Device ID: 0x1686

 Subsystem Vendor ID: 0x14e4

 Subsystem ID: 0x1686

 Revision ID: 0x0001

 Link Width: x1

 BSD name: en0

 Kext name: AppleBCM5701Ethernet.kext

 Firmware version: 57766a-v1.15

 Location: /System/Library/Extensions/IONetworkingFamily.kext/Contents/PlugIns/AppleBCM5701Ethernet.kext

 mDNS offload capable: 18:7e:b9:0a:8a:8d

 Version: 10.3.3

Ethernet not showing; Thunderbridge? appears in network

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.