i updated to sierra and now my ethernet no longer gets an ip through dhcp. It self assigns an ip adress an no longer connects to my network or the internet. Wifi works fine.
i tried removing the ethernet from my network settings and adding it back after a reboot but that did nothing.
anyone else has this issue?
Mac mini, iOS 10
I also have the same issue. Couple of weeks ago I have updated my laptop to Sierra and after that Thunderbolt Gigabit Ethernet adapter (A1433) has stopped to work.
It works fine when I use Windows through bootcamp.
Also system recognizes that adapter is connected:
Any ideas what this could be? I already tried the magic with removing locations, network interfaces etc..
Maybe there is some diagnostic tool or maybe just need to re-install drivers some way. This is really important for my work!!
My PC details:
MacBook Pro (Retina, 15-inch, Mid 2015)
macOS Sierra 10.12.4
Send Apple feedback. They won't answer, but at least will know there is a problem or a suggestion for change. If enough people send feedback, it may get the problem/suggested change solved sooner.
Maybe this information will be helpful.
We reproduced the issue. It occurs after updating from Sierra 10.12.2 to 10.12.4
To fix the issue, we made a backup of /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist from the 10.12.2 and then just restored it.
Actually only this section is important:
<dict>
<key>Active</key>
<true/>
<key>BSD Name</key>
<string>en4</string>
<key>IOBuiltin</key>
<false/>
<key>IOInterfaceNamePrefix</key>
<string>en</string>
<key>IOInterfaceType</key>
<integer>6</integer>
<key>IOInterfaceUnit</key>
<integer>4</integer>
<key>IOMACAddress</key>
<data>
qGC2Bod4
</data>
<key>IOPathMatch</key>
<string>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/PEG1@1,1/IOPP/UP SB@0/IOPP/DSB1@3/IOPP/UPS0@0/IOPP/pci-bridge@0/IOPP/ethernet@0/BCM5701Enet/en4</ string>
<key>SCNetworkInterfaceInfo</key>
<dict>
<key>UserDefinedName</key>
<string>Thunderbolt Ethernet</string>
</dict>
<key>SCNetworkInterfaceType</key>
<string>Ethernet</string>
</dict>
You can just copy it to the end of the array in that file.
conclusion: I AM PRETTY SURE THERE IS AN ISSUE IN THE LAST UPDATE AND I HOPE IT WILL BE FIXED ASAP
Hello direct images,
Thank you for using Apple Support Communities. It's my understanding your Ethernet is no longer working after updating to Sierra. I can see how this would be concerning, especially since Wi-Fi is working fine. I'm here to help get this resolved with you.
You've done a great job trying to fix this on your own! Please take a look at the link below for further assistance:
If the Ethernet connection on your Mac stopped working recently
Cheers!
Thank you for the help. I had already tried this as well. Also tried the pram reset aswell as the controller. Strangely ethernet just started working on its own again today.
I have the same issue with thunderbolt to ethernet ports on my MacBook since I updated to Sierra.
This both happens with my original apple thunderbolt adapter, as with my belkin thunderbolt dock.
I checked the kext suggestion, and I have a version 12.0.8
I looked up the adapter in the system information, and my thunderbolt adapter is being recognised:
Thunderbolt to Gigabit Ethernet Adapter:
Vendor Name: Apple Inc.
Device Name: Thunderbolt to Gigabit Ethernet Adapter
Vendor ID: 0x1
Device ID: 0x8003
Device Revision: 0x1
UID: 0x0001000200EC79F0
Apple Serial Number: DTN2437007WDWKHB5
Route String: 1
Firmware Version: 5,5
Port (Upstream):
Status: Device connected
Link Status: 0x2
Speed: Up to 10 Gb/s x1
Port Micro Firmware Version: 0.0.8
Sierra ethernet no longer working
