Questions tagged [ethernet]

a networking technology for a LAN that allows data transfer

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104
votes
4answers
125k views

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

When I'm connected to two networks with separate routers using Wifi and Ethernet, how does my Mac know what connection to use when I visit a website?
33
votes
17answers
27k views

Intriguing connection issue on OS X

I've been recently having this issue with my internet connection on my MacBook Pro Early 2011 running OS X 10.8.3: from time to time the connection "freezes" for about 5 seconds and then comes back. ...
29
votes
11answers
25k views

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

I've just been Googling about this, but I can't find definitive information (some sites claim things that I'm unsure of). Which is faster for connecting an ethernet cable to a MacBook Pro - a ...
23
votes
8answers
42k views

Connecting multiple devices to the 2016 MacBook Pro with Touch Bar

I'm thinking about buying the new MacBook Pro with 4 USB-C ports. I want to attach two screens, mouse and keyboard and ethernet to the MacBook Pro while using the fewest number of USB-C ports ...
21
votes
4answers
32k views

Ethernet indicator in OSX menu bar

I am using OSX 10.7 When I move between different ethernet networks (e.g., at work using ethernet on an external display, at home using thunderbolt ethernet), the ethernet does not always connect. ...
16
votes
7answers
99k views

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

I am plugging a USB Ethernet adapter (not Apple-brand) into my MacBook Pro (Retina, 15-inch, Late 2013). No go. I do not see any relevant "USB Ethernet" item listed in System Preferences > Network. ...
15
votes
11answers
263k views

Full Wi-fi/ethernet signal but no internet

I'm really hoping someone here can help me, as I'm getting pretty frustrated with my macbook now. I have a late 2011 model 15" macbook pro running OSX 10.9.5 that refuses to connect to Internet on my ...
15
votes
5answers
11k views

My Mac mini's computer name keeps changing when it resumes from sleep

When I wake my Mac mini from sleep, it occasionally comes up with a dialog saying "The name of your computer "whatever" is already in use on this network. The name has been changed to "whatever (1)"" (...
14
votes
2answers
42k views

Are Boot Camp drivers for thunderbolt to gigabit ethernet available?

I have a Retina MacBook Pro with Mountain Lion and Boot Camp with Windows 7 and the Boot Camp 4.0 drivers. I'm also using the Thunderbolt to Ethernet adapter. My problem is that my ethernet port (aka ...
13
votes
8answers
86k views

How to force Thunderbolt-ethernet connection when switching networks without restarting computer?

I have a thunderbolt to ethernet cable on a MacBookPro Retina on Lion. Sometimes the thunderbolt to ethernet connection does not work. It seems to occur when I switch network locations (e.g., I move ...
13
votes
3answers
12k views

Why does my Mac Pro have two ethernet ports on the back of the computer?

I'm curious as to how or why I might want to take advantage of two ethernet ports on the back of the tower?
12
votes
3answers
21k views

Do any USB 3.0 to Gigabit Ethernet adapter work with OS X?

Yes, I know there is a solution available from Apple for Thunderbolt. Yes, I know there is a solution available from Apple for USB 2.0 to fast Ethernet (10/100). I am looking for an adapter to plug ...
12
votes
3answers
35k views

Where is the MAC address of my Thunderbolt to Ethernet adapter?

I have a Thunderbolt to Ethernet adapter for a MacBook Air and I need to assign a static IP address to it. I assume the MAC address is embedded in a given adapter... and by convention I would assume ...
12
votes
3answers
11k views

How to spoof a USB-Ethernet adaptor's MAC address in OS X

I've recently bought a usb-ethernet adapter (not apple) and I get internet connection. In my university we have to put a specific mac address but I can not change it. I have tried with sudo ...
12
votes
2answers
7k views

Using a wi-fi and an ethernet connection at the same time thus having more bandwidth?

Is there a way on OSX or with a 3rd party software to use both a Wi-fi and an ethernet connection, thus having the sum of the connection speeds? Or maybe making some applications connect to one ...
11
votes
5answers
13k views

To let a Mac automatically use Wifi and Ethernet to double the connection speed?

I am staying at a hotel, and for some reason, I think they limit each Wifi connection to 95 kbyte / s. So that is roughly 1.2 Mbps... and since I have 18 Mbps at home, I am using a speed that is less ...
11
votes
1answer
1k views

Third party USB Ethernet adapter won't wake up

I have a mid 2015 Retina MBP 15" and regularly use multi screens and hard wired ethernet. So I've bought a third party HandAcc USB ethernet adapter with Realtek 0x8153 chipset (the device also ...
10
votes
3answers
36k views

How can I troubleshoot or reset a Thunderbolt Ethernet adapter?

It appears my Thunderbolt Ethernet connector has stopped connecting to my router for good today. Over the last few days I had already seen my ethernet connection "crash" multiple times. My machine ...
10
votes
5answers
32k views

What's the fastest connection speed / shortest elapsed time using Migration Assistant?

When using Migration Assistant to move users, files, and folders from an old Mac to a new one, you have a few different choices, depending on the Macs involved. Presuming that both Macs have ...
9
votes
3answers
17k views

Can I move data from old to new Time Capsule through USB?

The Apple knowledge base note on this question says to hardwire the Time Capsules and a computer together through ethernet, and transfer the data from TC1 to the computer to TC2, all through ethernet. ...
9
votes
2answers
15k views

How can I get the list of all active network interfaces programmatically?

My objective is to determine the IP address for Ethernet on a device. But assuming that there are connections like WiFi and USB Ethernet, is there a particular way just to get the Ethernet IP ? On a ...
8
votes
2answers
19k views

Can I share my iMac's internet connection via ethernet

My iMac connects to the internet (and my local network) via WiFi. Is it possible for me to connect another device via ethernet cable to my iMac to access the internet from that device?
7
votes
1answer
20k views

How to get Mac to give Ethernet connection priority? [duplicate]

I have the following issues / question. I use WIFI and Ethernet through each other like most people probably. Certain things like ripping a blu ray I want to do through the Ethernet connection so ...
7
votes
4answers
43k views

Apple A1277 USB ethernet adapter not working on MacBook Air

I've bought a USB ethernet adapter (A1277) and tried to make it work on my MacBook Air MD231 (mid 2012) and may OS is OS X Mavericks, but It's not working. I tried adding USB ethernet connection in ...
7
votes
5answers
66k views

Apple USB ethernet adapter is not detected

I have a Macbook Air running 10.7.4 and I'm trying to connect to ethernet using the official Apple USB to ethernet adapter. However, the mac never detects the new network interface. It never displays ...
7
votes
2answers
7k views

How can I use an Asix AX88179 with Mac OSX 10.8 (Mountain Lion)

I'm looking for some one who may have configure the Asix AX88179 to work with OSX 10.8 Mountain Lion. This chipset (AX88179) is embedded in most of the very new the USB 3.0 Gigabit Ethernet adapters. ...
7
votes
1answer
3k views

Difference between Apple's Thunderbolt ethernet adapters?

Apple seems to make (at least) two different Thunderbolt ethernet adapters. One is the "MD463LL/A". Another is the "MD463ZM/A". Is there any functional difference between them? Is one better than ...
7
votes
3answers
1k views

how to make different apps use wifi vs ethernet?

I'd like to route some apps through WiFi and other apps through ethernet. Given that OSX has a wide array of system tools and utilities as well as a rich ecosphere of apps, how can I make that happen?...
6
votes
1answer
3k views

Does macOS support Ethernet over USB without a 3rd-party driver?

As we all know, the MacBook and MacBook Pro do not have Ethernet ports. Apple makes a Thunderbolt Ethernet adapter (which requires no driver), but with the change to USB Type-C, this is no longer an ...
6
votes
6answers
10k views

My MacBook Pro loses its connection to my WiFi router

I've set up a brand-new internet connection with a Wireless Router. The thing is that : It works all the time for my iMac It stops working at times on my MacBook Pro (either when connected via wifi, ...
6
votes
3answers
7k views

Set Mac to use Wifi for Internet, Ethernet for local file transfer

Is there a way to make my Mac always choose Wifi for Internet browsing, and Ethernet for local network browsing and file-sharing? My Wifi Internet download speeds are approaching 100Mbps, but when ...
6
votes
2answers
11k views

Migration Assistant fails on Ethernet Mavericks-to-Mavericks migration

I have the following setup and am attempting the use Migration Assistant over Ethernet: Source machine: Early 2009 24-inch iMac running OS X 10.9 Destination machine: Latest MacBook Pro Retina ...
6
votes
1answer
4k views

How can I force Mac OS X 10.9 to see the ethernet port of my hub (Asix AX88179)?

I already downloaded (and installed !) the latest file from ASIX.com, which is the latest to this day, but System Information does not list the port as being available when I connect the USB 3 Hub ...
5
votes
6answers
46k views

How do I remove the 802.1X settings in Mountain Lion

I made a stupid 802.1X settings file some time ago to test some things. Now I am unable to remove it, even though I think I have deleted the file. The picture below shows the 802.1X profile to the ...
5
votes
2answers
542 views

USB hub fails to power ethernet adapter

This problem happens on both a 2011 Mac Air (Sierra) and a 2013 Macbook Pro Retina (El Capitan). For a couple years, I have had a powered USB 3.0 hub with a few devices plugged in, including a KVM, ...
5
votes
1answer
6k views

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

When I wake my machine in the morning, it often stays blank because there's some conflict between my 4k monitor and the 'Your computer name has changed for the 3950th time' dialogue that means both ...
5
votes
2answers
7k views

How can I automatically disable WiFi when I connect to an Ethernet network?

I would like my WiFi to automatically disconnect when I plug an Ethernet cable into my Mac. How would I go about this?
5
votes
3answers
21k views

Mavericks Internet Sharing over Ethernet stopped working

I'm on 10.9, and I had been using internet sharing successfully again for the first time since Lion. Today though, it just decided to stop working again. Network layout: Modem -ethernet-> Router -...
5
votes
3answers
6k views

What do I need to provide a wired guest isolated access to my home network?

I have an AirPort Extreme (APE) with the Wi-Fi setup for guest account and this works just fine. I was wondering if I could also provide a wired ethernet guest access without letting this user see my ...
5
votes
0answers
193 views

Fake ethernet interfaces (feth / if_fake)? Anyone ever seen this?

I've been digging into Darwin source to try to find some way to create virtual Ethernet interfaces on Mac/Darwin without adding a kernel extension like tuntaposx. In doing so I've found something ...
5
votes
1answer
5k views

Wake On Lan (WOL) iMac 2009 El Capitan, Sierra, not working

System: iMac (21.5-inch, Late 2009) El Capitan 10.11.6 Non-Apple modem/router Wake on LAN isn’t working. I have tried a variety of methods: iOS apps (Fing, iNet, Mocha); Mac applications and ...
4
votes
3answers
2k views

Find IP address of ethernet printer when Location is “Home”

I want to find the IP address of my home ethernet printer. When I follow instructions like here: https://www.youtube.com/watch?v=rGK3DUbFz2c in both cases, it says that the Location is Home. How do I ...
4
votes
1answer
17k views

Where are ethernet/internet/networking configuration files/settings stored on OS X 10.6

Someone I know has an ethernet configuration profile that works on the university network I'm on. As I am on 10.8 I do not have the option of configuring these files so I'd like to copy his ...
4
votes
4answers
545 views

Ethernet and Airport Problems

We have one canon copier machine which is connected to our LAN router via Ethernet cable. Currently, we are connecting to the Internet using a different router. To work with the printer, I need to ...
4
votes
1answer
8k views

If I connect an Ethernet cable, will my Mac automatically select the fastest route for local network traffic?

Background I have a fairly robust network setup at home, but am a little unclear on internal Mac networking. My LAN consists of two bridged AirPort Extremes and a cable modem. Everything is connected ...
4
votes
1answer
6k views

How to clear DHCP leases in OS X Server (v4.1.3-14S1127) on Yosemite 10.10.4

I have a situation where my OS X Server app seems to not be completely dropping DHCP leases and I think it is causing some of my hardware MAC's to conflict as per the assignments I have set. I use ...
4
votes
2answers
3k views

Backing up to an internal drive of another machine

I have a mac laptop that I want to back up to an internal drive on my Mac Pro. The drive I want to back up to is blank and not the OS drive. They are connected via ethernet, but I do not see the drive ...
4
votes
1answer
1k views

Built-in Ethernet not working

I am using a 13" MacBook Pro (mid 2012) and I have upgraded to OS X 10.11 El Capitan a while ago. Last night before going to bed I switched off the computer. Since this working the built-in Ethernet ...
4
votes
1answer
11k views

How can I share my Macbook's Network to iPhone, surpassing the 802.1X protection?

My school provides ethernet, which my Macbook can easily connect to. I want to share it with my iPhone, but it indicates that 802.1X protection has forbidden me to do so. Is there a way to surpass the ...
4
votes
5answers
3k views

Logitech wireless mouse not working with gigabit ethernet adapter plugged in?

I am seeing baffling behavior with my wireless mouse (connected via USB) and my gigabit ethernet adapter plugged in simultaneously. If my mouse is plugged in and working fine, if I plug in my gigabit ...