Questions tagged [ethernet]

a networking technology for a LAN that allows data transfer

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How to fix Thunderbolt to Gigabit Ethernet slower than Wi-Fi Macbook Pro?

I recently bought a Thunderbolt to Gigabit Ethernet adapter so I could have faster Internet. I plugged the cable into my Internet modem, and the other end into my adapter. I plugged the adapter into ...
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1answer
3k views

“Internet Sharing” via “Ethernet” is not working

I'm using OS X El Capitan (10.11) on my MacBook Pro (Retina, 15-inch, Early 2013) and I'm trying to use System Preferences -> Sharing -> Internet Sharing feature and something isn't working... I made ...
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1answer
39 views

Can the files being transferred affect/slow the data throughput?

I'm currently trying to carry out the initial backup of an iMac using Time Machine, backing up to a Time Capsule (3TB, the older 'flat' type). The TC is connected via Ethernet and for reasons to do ...
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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 ...
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2answers
2k views

What is difference between network service and network interface

I'm a little bit confused about the difference between a network interface and network service. For example, the ifconfig utility documentation talks in terms of the network interface: ifconfig en0 ...
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0answers
766 views

Is it possible to tether internet on the iPhone to an Ethernet attached device?

I have a hotspot connection on my iPhone 7 Plus phone that is extremely slow. The Internet on my phone is extremely fast. When I connect a device the connection is very slow. The device is a smart TV. ...
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2answers
3k views

Macbook Air Running version 10.7.5 won't connect to wifi but connects via Ethernet

I have a MBA and I have connected to my home network before. I went on holiday and on return, I cannot connect to Wifi anymore. It tells me "connection time-out occurred". But my Ipod Touch (4th Gen) ...
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0answers
1k views

How to share company Tunnelblick VPN (via Wifi) over Ethernet?

I have a company-issued 2017 MacBook Pro (4 x Thunderbolt 3 ports, macOS Sierra 10.12.6). My IT has installed Tunnelblick VPN so that I access company-internal servers over WiFi at home. I would like ...
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1answer
389 views

In Macbook, what are Thunderbolt MAC addresses for, if ethernet adapters provide ones?

I think this answer and this one say that each ethernet adapter, such as USB-C-Gigabit Ethernet Adapter, has its own MAC address. So, that means Macbook (Pro) doesn't have a built-in ethernet card. ...
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1answer
2k views

Mac mini ethernet speeds not gigabit?

I've been writing a script for my Mac Mini (2014) that does a speed test and logs the data to a database. All that works great, but the results were a lot lower than I was expecting. I have a gigabit ...
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1answer
848 views

How to reset LAN ethernet adapter after switching the network

I have MacBook Pro 2017. I have the very same docker hub at work and at home (moshi). Both have LAN cables attached. However, I can use only one of them: for example, when I make my work LAN working, ...
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1answer
26 views

Using scp with large files kills ethernet?

This morning I tried to use scp to copy a single large file from my old Linux Ubuntu machine to my brand new 2017 Mac Book Pro. I ran into a very strange problem: scp would happily copy 95% of data (...
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1answer
170 views

Transfer speed much slower in Wi-Fi than Ethernet

I'm transferring a lot of pictures from my Macbook Pro to a local Synology NAS (DS116), using an FTP software named Transmit. I noticed that the upload speed is quite different between Wi-Fi and ...
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0answers
1k views

Ethernet disconnected after sleep

When I come back to my Mac after it was sleeping sometimes the Ethernet connection is not working. I have to unplug and plug it again. I am using macOS Sierra Version 10.12.6 Any ideas?
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1answer
24k views

My Mac won't connect with Ethernet but will to wireless

I apologize if this is a stupid question, but I'm not very tech-savvy. Using a iMac (21.5-inch, Mid 2010), running El Capitan version 10.11.6. Router is Amped Wireless ATHENA, High Power AC2600 Wi-Fi ...
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1answer
76 views

Filter out ARP query from given ether:ip

Let's say on my network there is a hacker who floods my computer with arp messages to associate his MAC address with the IP of the computer I want to reach. It's like he sends the following message ...
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2answers
576 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, ...
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1answer
90 views

Thunderbolt-ethernet cable heats up MacBook Air

I recently bought a thunderbolt-ethernet cable because my university only provides internet access via ethernet, and I have a MacBook Air. The cable works pretty well, except that it really heats up ...
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0answers
29 views

Ethernet 10/100 Mbps

I have recently upgraded my Internet access to 100Mbps upload / 30Mbps download, upgraded also the modem router and switches to 100Mbps. Tested with Speediest app (Mac OSX) and found these figures: - ...
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1answer
2k views

How to connect to wifi while connected to a device through thunderbolt bridge

Macbook --> Thunderbolt Ethernet adapter --> Ethernet Cable --> Device under test with IP address The device under test is not connected to the internet. While I am testing the device I still need an ...
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1answer
1k views

Fastest way to migrate data from Late 2016 13" MacBook Pro to 2009 Mac Pro

I'd like to use Migration Assistant to migrate data from a Late 2016 13" MacBook Pro to a 2009 Mac Pro. The only connection options I see possibly working are gigabit ethernet or USB. I'm not sure if ...
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0answers
274 views

MacBook Sierra display ethernet needs constant re-starting

I have a shiny new MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) running Sierra (10.12.4). When connected to my Apple Thunderbolt Display via an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 ...
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1answer
115 views

Is Thunderbolt on the same bus as FireWire and Ethernet on a late 2012 Mac Mini

I use a late 2012 Mac Mini as a music server. My expensive, external audio digital to analogue converter (DAC) was connected to the Mini by FireWire. After a lightning strike the Mac Mini FireWire and ...
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0answers
1k views

Unable to use WiFi after/during using thunderbolt ethernet adapter

when I use my thunderbolt ethernet adapter I'm not able to connect to the WiFi, either when the adapter is plugged or not. I tried to check for errors in /var/logs/wifi and I got this: Wed Apr 26 16:...
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1answer
6k views

How do I delete network interfaces

I am still a little new to the macOS world, so my question might be easily solved. I have been doing some networking with my MacBook Air and noticed some things I did not understand/thought that they ...
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1answer
5k views

connecting my laptop to iPhone HotSpot using Ethernet adapter

Can someone suggest an adapter to connect to iPhone hotspot through Ethernet data cable? Wireless hardware in my laptop has stopped working and I am using Ethernet cable to connect to Internet. But ...
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1answer
439 views

Can't use Wi-Fi and LAN at the same time

I have a macbook and a belkin USB-C to Ethernet Adapter. I would like to use Wi-Fi to access the internet, and the LAN cable to connect to a local network. But it doesn't work. Whenever I plug in the ...
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4answers
5k views

Do I have to use the Apple USB Ethernet Adapter for a MacBook Air?

Or can I use a third party one that is half the price? If there will be compatibility issues then I would prefer the Apple, but if it's just the same (like not needing to buy a SuperDrive any USB DVD ...
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1answer
1k views

Netboot cannot get DHCP IP address

Testing netboot on a Macbook Pro 9,2 with Yosemite installed. Infoblox DHCP/DNS (Linux style) giving out IP address. Reservation for this Mac is set - Logging into OSX provides correct IP etc. I have ...
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1answer
2k views

Unistall Realtek USB Ethernet Network Adapter

I would like to uninstall the "Realtek USB Ethernet Network Adapter" I can find it under System Information -> Software -> Installations in a list but don't know how to get rid of it.
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1answer
170 views

Does gigabit ethernet to thunderbolt adapter work with old ethernet?

Does Apple's Gigabit ethernet to thunderbolt adapter work with old types of ethernet that are not gigabit? I am wondering because I want to use it with my 2015 macbook pro, wondering if I can connect ...
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1answer
212 views

iMac with Apple USB Ethernet won't boot after latest Security Update

We have a number of iMacs (models 14,1 to 16,2) running in a StorNext 5 environment as Distributed LAN Clients (DLC). These machines have Apple USB Ethernet adaptors attached to provide a secondary ...
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2answers
1k views

No ethernet icon in Lion?

I remember having an ethernet icon in Tiger and Leopard in the menu bar. This was very convenient since it gave quick access to the settings just like you need it for airport: In Lion I do not see ...
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1answer
59 views

Link aggregate “bondmode” spontaneously changes

I've setup a link aggregate of the two ethernet ports on my macpro6,1 (via System Preferences > Network > Manage Virtual Interfaces > New Link Aggregate). Due to the way my other devices are setup, I ...
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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 ...
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1answer
548 views

Trying to turn on localhost on Sierra made my Mac unable to connect to internet

Background I recently upgraded to macOS Sierra, but couldn't see the typical "it works" page on the local host. I followed some instructions online, first I did the following to my httpd.conf file: ...
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1answer
515 views

Transparent Firewall using macOS pf

I'm trying to setup a transparent firewall with a Mac mini running macOS Sierra. Basically I'm trying to do this (just with macOS): A Transparent Firewall Using OpenBSD This is my network setup: ...
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2answers
9k views

Can one buy an Ethernet and HDMI Thunderbolt adapter?

I need both of them and I am wondering if it is possible to buy them together or if I have to get two separate items? Also I am seeing a lot of third party Thunderbolt>HDMI adapters for cheap and ...
12
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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 ...
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2answers
3k views

Send very large files through Ethernet between two Mac computers

My coworker uses a MacBook Pro, I use an iMac, both running El Capitan. We need to send a file from her computer to my computer very quickly. The file is over 200Gb. We don't have an external hard ...
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2answers
819 views

How can I configure my Ethernet connection when booting from Recovery HD?

I'm trying to recover from a Time Machine drive sitting on the network at work. Our network doesn't use DHCP–it requires the Ethernet connection to be manually configured. I've looked at the Network ...
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1answer
441 views

Ethernet, WLAN (Wi-Fi) and Siri

Today I updated to macOS Sierra. Until now I disabled WLAN, because my Mac is connected via Ethernet (cable). However, Siri needs WLAN to determine where I am. Thus without WLAN, Siri cannot answer my ...
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1answer
31 views

Is Ethernet traffic slowing OS X?

Running OS X 11 or 12 on late 2012 iMac connected to company LAN via 1000BaseT. Even when not running browser, email client, …, that would use the network, Mac is quite slow. RAM pressure is light (8 ...
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1answer
263 views

No Ethernet on MacBook Pro

Have had MAcBook for about 4 yrs., this is first time I can recall using ethernet, and computer doesn't see it. SD card reader quit working some time ago but USB is okay. Ran diagnostic getting ...
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3answers
884 views

My Macbook can connect to ethernet over Ubuntu but not OS X

I'm currently dual booting Ubuntu 14.04 and OS X Mavericks (10.9.4) on my 2014 Macbook Pro. When running Ubuntu, I can plug in the Ethernet cable and instantly be connected. But when running OS X, ...
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4answers
14k views

iMac Doesn't see Ethernet Cable

I have a strange problem with my iMac (mid. 2011 21,5) - I can't connect to the network using Ethernet because OS X tells me that it's disconnected when it's plugged in. Sometimes it can see the ...
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1answer
1k views

Mac DHCP Server

I often have the need to connect to devices directly through the ethernet port on my MacBook. When I am connected to a wireless network, I can share my connection to ethernet. However, the second, I ...
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6answers
48k 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 ...
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3answers
4k views

MacBook connects to network over Ethernet but not WiFi

I'm visiting my relatives and trying to get my MacBook on their network. If I connect over Ethernet, everything works fine and I can get online without a hitch. But if I connect over WiFi, I can't ...
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1answer
306 views

12-inch MacBook & Ethernet

I am trying to configure the network on my 12-inch MacBook. I have the following manual: But there is no Ethernet in the list. I tried to import it from my old computer, but it output the following: ...