- #Thunderbolt to gigabit ethernet adapter mac address full#
- #Thunderbolt to gigabit ethernet adapter mac address free#
It's not the TB port, because I tried both ports, and both ports fail the same way with either TB-GbE adapter. It's not the Thunderbolt adapter, because I have two, and both fail the same way. It's not the cable, because I plugged the same cable into a USB-GbE adapter, and it works fine.
It's not the DHCP server, because WiFi works fine, as does every other machine in this building. It sees the cable, fails DHCP, and then auto-assigns a link-local address. however as you say that you're using the exact same cable with another computer that achieves better speeds then it is probably not going to help.I returned from a 2 week business trip abroad, and now my mid-2014 MBP 15" Retina/10.11.2 won't get an IP on its Thunderbolt Ethernet adapter. Usually setting it to configure automatically should do the trick.Īnother thing is to try different cables, switch ports, etc. In the window that comes up, choose the Hardware tab and check that the Speed setting is set to the maximum possible. In the Network Settings (your screen shot) - choose the USB Ethernet adapter and click Advanced.
I would start by checking the actual configured speed on the adapter.
#Thunderbolt to gigabit ethernet adapter mac address full#
You can unlock the full potential of gigabit ethernet by using a USB 3.0 or Thunderbolt 2 Ethernet adapter instead. USB 2.0 has a theoretical maximum transfer rate of 480 Mbps, but in practice I would expect a USB 2.0 Ethernet adapter to max out at about 300 Mbps. However achieving 150 Mbps should not be a problem. In general a USB 2.0 adapter is not going to allow you to transfer data at ful gigabit speeds. I have used various 3rd party Ethernet to USB-C adapters and even Ethernet to Thunderbolt adapters (both in docks and in dongles) - and haven't had speed issues with them. In my experience it is not so that only the Apple made Ethernet adapter works with Macs. Setup a small test environment as described in the linked answer so you can eliminate the unreliability of the Internet connection and limit your test to variables you can control. Avoid the inexpensive off brand adapters and stick to brands like Belkin, Anker, Netgear, etc. As far as the comment re: Apple branded Ethernet adapters, the answer is any quality adapter with a compatible chipset will work and perform just fine. I actually address the “quality” issue in this post: AX88179 ethernet adapter keeps dropping connection. However, it can be affected by the quality of the adapter and/or the inherent throughput inconsistencies of the Internet. Same for your transfer speeds - what you’re seeing is well below USB 2 throughput. USB speeds and feeds have nothing to do with this. In your example, the variance in your ping results - 12ms vs 24ms could be due to the quality of your adapter and/or inherent latency of your internet connection. High quality USB to Ethernet adapters will have low latency (ping results) and higher throughput (iPerf3 results).
#Thunderbolt to gigabit ethernet adapter mac address free#
It’s free snd simple to use.Īs for differences in performance, it comes down to the quality of the USB bridge in the adapter and the quality of the Ethernet chip itself they’re not all created equal. You need to use the iPerf3 utility to measure the performance internally. Your question is very similar to this one: What dowload speeds is the Apple USB Ethernet Adapter capable of? You need to do this internally where you control the variables. You can’t evaluate adapter performance by measuring Internet latency and throughput because those things change - like the Network congestion and load of your service provider at that tine.
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