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

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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

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Ethernet not showing; Thunderbridge? appears in network

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