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33 votes
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Should I use a Thunderbolt adapter or a USB 3.0 adapter for ethernet?

SHORT ANSWER The answer to your question as asked in the title is it really depends on what ports you have available, personal preference, cost, etc. I say this because both USB 3.0 and Thunderbolt ...
Monomeeth's user avatar
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27 votes
Accepted

How does a Mac choose between Wi-Fi and Ethernet to work with?

It's possible to set network access interface priority order. Go to System Preferences → Network, click on the lock icon to unlock the preference pane. Now click on the gear icon shown towards the ...
Nimesh Neema's user avatar
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25 votes

How to get Mac to give Ethernet connection priority?

According to Apple Support: Choose Apple menu > System Preferences, then click Network. Click the Action pop-up menu , then choose Set Service Order. Drag a service, such as Ethernet, to the top of ...
Munesawagi's user avatar
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22 votes
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macOS artificially restricts speeds to 100 Mbps over Ethernet

MacOS does not come with such a restriction. There's no built-in feature that limits transfer speeds to 118 Mpbs (or similar value) after while. You can build such a feature yourself using the ...
jksoegaard's user avatar
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19 votes

Ethernet indicator in OSX menu bar

Late to answer but still for those landing here looking for a Ethernet connectivity status icon in menu bar, check this macOS app Ethernet Status - The Missing LAN Status Bar Icon. It shows ethernet ...
Vikram Rao's user avatar
19 votes

Connecting multiple screens to the 2016 MacBook Pro with Touch Bar

We have a brand new Late 2016 Macbook Pro and 2 Apple/LG 21.5 USB-C 4K monitors. Daisy-chaining/MST does not work. We are using the monitors and nothing else with the original cables. Only way to get ...
user2209274's user avatar
18 votes

How to use 3rd-party USB Ethernet adapter with El Capitan

For Realtek based USB 2.0 or 3.0 Ethernet Adapters, you can get the driver from Realtek which works for both 8153 and 8152.
a2bk's user avatar
  • 281
14 votes

macOS artificially restricts speeds to 100 Mbps over Ethernet

Check your network cable If it's not a software based issue, it's likely hardware. I'd replace the network cable with a known good one. Even cables that look OK can have issues.
PainlessDocJ's user avatar
13 votes

How to use 3rd-party USB Ethernet adapter with El Capitan

As far as I understand, you can run a lot of generic ones that don't have Apple-signed drivers by disabling "System Integrity Protection" (SIP) From: http://inkandfeet.com/how-to-use-a-generic-usb-...
Aaron Wallentine's user avatar
13 votes

How does a Mac choose between Wi-Fi and Ethernet to work with?

In a default setup, macOS will prefer the ethernet connection over the WiFi connection automatically. You do not need to fear that you're limiting your network speeds by also connecting to WiFi. You ...
jksoegaard's user avatar
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12 votes

Should I use a Thunderbolt adapter or a USB 3.0 adapter for ethernet?

I would recommend Thunderbolt, as it is essentially external PCI-Express, which is the same bus an internal network card (among other things like graphics cards, etc) is attached to. PCI-E (and thus ...
André Borie's user avatar
11 votes
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How to spoof a USB-Ethernet adaptor's MAC address in OS X

I fixed this issue by installing my adapter's chipset driver on Mac Os X. After rebooting, the usual command (e.g. sudo ifconfig en6 ether xx:xx:xx:xx:xx:xx) works as expected. Below the details. I ...
Martin's user avatar
  • 226
11 votes

Should I use a Thunderbolt adapter or a USB 3.0 adapter for ethernet?

An answer from my personal experience: I've used both original Apple's Thunderbolt to Gigabit Ethernet adapter Cable Matters DB50 USB 3.0 to Gigabit Ethernet adapter and noticed no difference when ...
Kuba Wyrostek's user avatar
10 votes

Connecting multiple screens to the 2016 MacBook Pro with Touch Bar

After doing a little research on Dell's daisy chaining monitors, I came across this bit of info on their support site: Multi-Stream Transport (MST), also known as Daisy Chaining, is a new ...
Allan's user avatar
  • 103k
10 votes

Connecting multiple screens to the 2016 MacBook Pro with Touch Bar

I'm not sure if this answers the question but I'm testing this out right now with a new MacBook Pro Touchbar 13" with 4 USB-C ports. In the testing I'm using the Minix Neo C Hub which has 2x USB3 - ...
JoshFink's user avatar
  • 123
10 votes
Accepted

Can I disable wifi automatically if there is an ethernet connection?

You have a couple of solutions: Automatically disable Wifi when an Ethernet connection (cable) is plugged in on a Mac This is a bash script that will automatically turn your wifi off if you connect ...
StrawHara's user avatar
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9 votes

Ethernet indicator in OSX menu bar

You can use BitBar with the Emoji Active Network Interface Indicator to show an emoji in your menubar that indicates if you are on Wi-Fi or another interface. BitBar: http://getbitbar.com Emoji ...
Phoebe's user avatar
  • 620
9 votes
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Does macOS support Ethernet over USB without a 3rd-party driver?

Yes - the vast majority of ethernet adapters work - especially USB-C since they are generally very new, a little more pricey and use fairly standard types of control chips and usb chips. The Belkin ...
bmike's user avatar
  • 237k
8 votes

Send very large files through Ethernet between two Mac computers

Yes, you can use an ethernet cable to quickly transfer files from one computer to the other. It's really quite simple. Plug in the cable Go to System Preferences, and make sure that Ethernet is ...
ryebread's user avatar
  • 1,816
7 votes

How does the Mac choose which connection to use when both Wifi and Ethernet are connected?

The Service Order doesn't work. If you test it, you will find that Mac OS prioritizes Wifi over Ethernet, even if Ethernet is set higher in the Service Order. One way to test it is to measure your ...
PJSimon's user avatar
  • 191
7 votes

How to measure local Ethernet speed

As a rough idea - your speed must be somewhere between 47 and 100 Mbps. Must probably it is 100 Mbps. If you want to test, get a second computer and take the connection out of the router and plug it ...
jksoegaard's user avatar
  • 78.3k
7 votes
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How to make Macbook Pro recognise gigabit speed of ethernet adapter dongle via USB-C connection?

Judging from your screenshots it seems like the LAN cable is not directly plugged into your Mac, instead: LAN cable → USB 2.0 Hub→ 4-port USB 2.1 Hub → USB 3.1 MBP Controller USB 2 spec does not allow ...
X_841's user avatar
  • 3,416
6 votes
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How do I delete network interfaces

These are for the most part physical network adapters which exist within your computer. Even if you remove them all from System Preferences --> Network, ifconfig will still report them all. Here's ...
Foliovision's user avatar
  • 1,051
6 votes

MacBook Pro not recognizing USB ethernet adapter in macOS, but does in Bootcamp

If it's the standard Apple ethernet adapter, I've run into this problem on a couple of different MacBooks. There are a few different things you can try in this thread on Apple's message boards, but ...
calum_b's user avatar
  • 5,921
6 votes

Apple USB Ethernet Adapter has a self-assigned IP address and will not be able to connect to the Internet

Assuming that there is no firewall running (you can do this by issuing the command sudo pfctl -d at the command line), there are two possibilities that would be causing this: A faulty Apple USB ...
Allan's user avatar
  • 103k
6 votes
Accepted

Mac Mini (2018) 10Gb Port Compatibility

Yes, it is compatible with both 1000Base-T and 100Base-T. I own the Mac Mini 2018 with 10 Gbps option and have tried both configurations in practice. It doesn’t appear to be compatible with 10Base-T, ...
jksoegaard's user avatar
  • 78.3k
5 votes

Migration Assistant not recognizing ethernet

Okay, here we go It's a simple answer, so... After wasting hours of time trying to figure this out I realized that Migration Assistant is not smart enough to set up the Ethernet connection itself. ...
Pro Blaster's user avatar
5 votes

Ethernet network connection lost after locking or after Screen Saver activation

It seems that you can stop this behavior by preventing your machine from sleeping after screen lock: Open System Preferences / Energy Saver Under Power Adapter, check Prevent computer from sleeping ...
mvreijn's user avatar
  • 481
5 votes

Can I disable wifi automatically if there is an ethernet connection?

I realise this question is a bit old... however, as there are multiple ways of accomplishing the same result, I thought it worth sharing one more: using Hammerspoon and a couple of snippets of Lua ...
TataBlack's user avatar
  • 151
5 votes

Apple USB Ethernet Adapter has a self-assigned IP address and will not be able to connect to the Internet

I had this issue after switching the Ethernet cable from my Windows computer to my Mac. Apparently the router (which has no Wireless capability) was running as a modem only, and not as a router. When ...
jessetaylor-mt's user avatar

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