Ethernet is a way of connecting computers together in a local area network or LAN.

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1answer
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Share wireless Internet connection through ethernet

I want to share the wireless Internet connection on my desktop with my old laptop, through ethernet. I have ticked the option "Make available to others" on both connections, on my desktop, but my ...
27
votes
2answers
116k views

How do I install drivers for the Atheros AR8161 Ethernet controller?

I have installed Ubuntu 12.04-64 bit on my Lenovo IdeaPad laptop, and the wired Ethernet (LAN) connection doesn't work. Running the lspci -vv | grep Atheros command from the terminal shows me I have ...
18
votes
6answers
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What is the active MAC Address of my computer?

While looking to find the MAC Address of my computer as it appears to a wireless network, it was recommended that I run ifconfig. Having executed that command in the Terminal, I noticed that, unlike ...
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2answers
6k views

How to configure preferred network for internet?

I am connected to a LAN network and wireless network. Both provide access to internet. Sometimes when the internet on LAN is not working, the browser simply throws an exception instead of switching ...
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7answers
35k views

Two ethernet ports on motherboard. How can I get double the bandwidth?

Direct Question: My evga classified motherboard has two ethernet ports. I want to use them simultaneously to improve the speed of a remote connection. (Yay for programming remotely). How do I do ...
15
votes
6answers
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Why is my Internet connection randomly dropping?

Ever since I have installed 12.04 (clean install not an upgrade), I have been having a drop in the Internet connection. The drop in the connection can be anything from 15 seconds to about 3 mins, and ...
12
votes
5answers
10k views

OpenVPN: The VPN connection to … because of invalid VPN secrets

I am 3 days into using Linux. I set up an OpenVPN connection following the instructions set out by: https://www.goldenfrog.com/support/vyprvpn/vpn-setup/linux/openvpn OpenVPN installation went ...
10
votes
4answers
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Wired connection not working Ubuntu 12.04

My connection was fine until now, but my wired connection is not working in Ubuntu 12.04. I have installed Ubuntu 12.04 along side Windows 7 partition and the connection works on Windows but not on ...
10
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3answers
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RTL8111/8168B Rev 06 Ethernet controller not working with AMD64 Kernels > 2.6

I'm also having trouble with the RTL8111 Ethernet controller. It's not working at all on Ubuntu x64. This is my card: $ lspci -nnk | grep -i net -A2 05:00.0 Ethernet controller [0200]: Realtek ...
8
votes
5answers
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When Ubuntu Server restarts eth0 Doesn't come back up

Every time I restart my Ubuntu Server 11.10 I can't ssh into it because ETH0 doesn't come up automatically. I never had this problem before upgrading to 11.10. I have to login to the server and start ...
8
votes
1answer
2k views

Why does Ubuntu keep trying to connect to a WiFi network while plugged into an ethernet

My desk is situated at the edge of the range of a wireless signal which I use occasionally (when away from my desk) and is therefore saved in network manager. At my desk, however, I plug into the ...
7
votes
3answers
8k views

Is there any way to install Atheros e2400 drivers?

I have a new motherboard: MSI Z170A GAMING M5. This motherboard has an Atheros killer e2400 Ethernet controller. When I do lspci -nn, I get: 03.00.0 Ethernet controller [0200]: Qualcomm Atheros ...
7
votes
2answers
9k views

What should my MAC address be? (now shows 00:00:00:00:00:00)

I have three computers all wired into my router. The box I'm posting this from is running Ubuntu 11.10, and another machine is running Xubuntu 11.10 Both connected automatically when the ethernet ...
7
votes
4answers
26k views

“Wired Network Disconnected” even when connected- no ethernet connection possible

I am unable to connect to the internet via ethernet or wifi. Let's fix the ethernet issue, eh? I just installed Unbuntu 12.04 on an HP Mini 1000. Previously it had 11.04, and the ethernet didn't ...
7
votes
2answers
25k views

Ubuntu 14.04 Network Problem

I have an issue with my Ubuntu 14.04. I am able to connect to wireless networks without any problems, but when I am in my Dorm Room, I cannot connect to my wired Internet connection. It works fine ...
6
votes
1answer
7k views

How do I share my wireless connection via a wired cable?

Im trying to share the wireless from my netbook eeepc to my desktop computer that does not have any wifi, it can run internet through a cable connected to my internet router but im wondering if there ...
5
votes
2answers
19k views

Ubuntu 14.04 LTS wired internet extremely slow

My wired internet is running extremely slow after installing Ubuntu 14.04 on my desktop. my normal internet speed (Windows) using speedtest.net is around 25 mbps, Ubuntu is pulling in 0.5 mbps tops. ...
5
votes
3answers
4k views

Why do Ethernet devices not show up in “/dev”?

Generally I have noticed that plugging in a new device in a Linux system causes a new entry to be listed in /dev (assuming you have the correct drivers). For example: When you plug in a new hard ...
5
votes
1answer
118k views

Trying to configure eth0 and eth1 but Failed to bring up eth1

Trying to do below on Ubuntu 12.04. Trying to configure eth0 and eth1, eth0 works fine, but failed to bring eth1. Below is the settings /etc/network/interfaces: auto eth0 eth1 iface eth0 inet ...
5
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2answers
16k views

Ethernet not working (neither even detected) on Ubuntu 12.04

Ethernet is not being detected on my computer running Ubuntu 12.04 with LAMP. The last thing I remember doing is following this tutorial: http://www.howtoforge.com/linux-basics-set-a-static-ip-on-...
5
votes
4answers
33k views

How do I get a Qualcomm Atheros Killer E2200 gigabit ethernet card working?

I bought a new computer, hoping to dual boot Win 8 and Ubuntu 13.04. I have successfully installed both OS, but in Ubuntu I have no connection to the internet, even though the ethernet cable is ...
5
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3answers
8k views

Ethernet problem in ubuntu 13.04

Can't wait till raring officially release, I decided to use daily-image of it. However, my ethernet is not working. cannot be selected and activated to retrieve DHCP from my LAN. It was working ...
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3answers
2k views

Is there any invariable hardware system identifier in Ubuntu/Linux

At the current I am using ethernet mac address to generate license for my program, but sometimes there is more than one ethernet card (wireless, modem, etc.). So I would like to use something else: ...
5
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2answers
3k views

Installed Ubuntu 11.10, and networking constantly fails

I just installed Ocelot on my new machine (with an ASUS M5A99X EVO motherboard and on-board gigabit ethernet), and I asked it to download updates while it installed. The install took forever, the ...
5
votes
1answer
8k views

How do I get a StarTech USB 3.0 to Gigabit Ethernet Adapter working?

I bought a Startech USB 3.0 to Gigabit Ethernet Adapter and looking for linux drivers. I did google search and did not come up with anything. Startech.com has only windows drivers. Any help on ...
5
votes
1answer
5k views

Intel e1000e Ethernet not working

I have the problem that the ethernet device on the Intel NUC is not found. ifconfig -a only shows lo and wlan0 but not eth0. sudo lshw -C net gives the following output: *-network UNCLAIMED ...
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2answers
24k views

Intel I217LM ethernet controller not detected by Ubuntu 12.04LTS

My last installation of Ubuntu 12.04 on a machine using an ASUS Q87M-E motherboard with an Intel I217LM Ethernet controller has failed to detect the ethernet card. The only thing displayed by ...
5
votes
1answer
4k views

Ubuntu 15.04 after reboot lost Ethernet connection

I've installed Ubuntu 15.04 and after a reboot I lose my Ethernet connection. After I've disable and re-enabled my connection Ethernet works fine, until I reboot again. This has been going on ever ...
5
votes
1answer
9k views

Network eth0 DHCP, static ip and autonegotiation issues

Background I am running an Ubuntu Server on 14.04 which is currently up-to-date. I have only one network device connected to it. When I use my Ethernet cord and connect it from the wall to my laptop (...
5
votes
2answers
2k views

How to block Internet for guest account?

How can I block or disable my Ethernet Internet connection, for the guest account only?
5
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2answers
6k views

Ethernet connection not working in ubuntu 14.04.1 LTS

I am facing weird issue with my ethernet connection. Its showing connected but when I hit something in the browser it won't though its connecting via wifi to other networks but not with the wired ...
4
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2answers
6k views

Disable Ethernet permanently to speed up boot time

I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process ...
4
votes
2answers
6k views

How can I automate a root command after (not during) startup?

I'm using Ubuntu 12.04 LTS, but I need to run the following command: sudo dhclient after startup to acquire a stable ethernet connection. I am running dhclient during startup already, through the /...
4
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2answers
15k views

Ethernet connection not working after installing Ubuntu 14.04 LTS

EDIT: PROBLEM IS BACK.. I cant figure out a permanent and reliable way around the bug (have managed the bug to go away 2 times) my files keep duplicating themselves with a ~ after their name, so if I ...
4
votes
1answer
7k views

Ethernet not detected whatsoever

I recently installed Lubuntu 13.04 64-bit on one of my older computers (the computer is ancient - DDR1, no USB boot, yet it's 64-bit. Go figure.) Anyway, the Wi-Fi adapter I tried to use ...
4
votes
1answer
10k views

How do I connect using ssh over a direct Ethernet connection?

I have a laptop, a desktop, and a spare 5' Ethernet cable that I can use to directly connect one to the other. The desktop freezes every few days or so, seemingly at random, and when it happens I want ...
4
votes
2answers
6k views

How to 'unplumb' a network interface [closed]

I want to remove a un-use network interface on Ubuntu 11.10 desktop but failed. virbr0 Link encap:Ethernet HWaddr 16:13:97:0c:0f:4f UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 ...
4
votes
1answer
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Ubuntu 14.04 wired connection keep disconnecting

I was using Ubuntu 12.04 LTS on my Dell Vostro laptop. Yesterday I upgraded the same into Ubuntu 14.04 LTS, after upgrading my wired ethernet connection is getting automatically disconnected after ...
4
votes
2answers
1k views

Network manager applet doesn't show wired network connection

I have the latest installs of network-manager and network-manager-gnome. I installed Ubuntu Server LTS 14.04, then installed Cinnamon on top of that. I have LAN network connection (can browse, etc.). ...
4
votes
2answers
4k views

How to sync files on 2 computers using an ethernet cable (offline)?

I have a laptop running Ubuntu 12.04 and a netbook running Ubuntu 12.10. I want to sync some folders from my laptop on my netbook, connecting them with an ethernet cable. Both computers are offline, ...
4
votes
1answer
5k views

My hardware MAC address is always 00:00:00:00:00:00 until I manually update 'eth0'. How can I fix this? [duplicate]

I am using Ubuntu 12.04. I use a wired connection. My network MAC address shows as 00:00:00:00:00:00. When I enter the commands below into a terminal window, it starts working again. sudo ifconfig ...
4
votes
3answers
1k views

NetworkManager asks for password repeatedly [802.1x][16.04]

I recently updated form 15.10 to 16.04, I live on a campus, and we have to sign in for internet through 802.1x. I did everything same as I did it on 15.10, but I can't sign in on ubuntu 16.04. After i ...
4
votes
1answer
2k views

Ubuntu 14.04 recognize my Thunderbolt Ethernet only in start up

Ubuntu 14.04 recognize my Thunderbolt Ethernet only in start up and when Ethernet disconnect or unplug Thunderbolt Ethernet, i can not connect to Ethernet network any more and i have to restart. how ...
4
votes
0answers
261 views

LXC bridging with two NICs

I am setting up a server to host a number of LXC containers, for now just isolating web and db services. The server I am using has two NICs and I'd like to use one for host traffic and one for ...
4
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0answers
9k views

Ubuntu 12.10 - “the system network services are not compatible with this version”

Fairly new to Ubuntu, know my way around, but novice user. Started my Laptop running Ubuntu 12.10 this morning, and no wireless or Eth. Look at Network Manager and this message: "the system network ...
4
votes
1answer
958 views

My server does not forward packets between interfaces. What am I missing? [closed]

I'd like to get my Ubuntu 11.04 server to route packet between its two network interfaces. The two ethernet interfaces (eth0, eth1) work apparently well as such. Both have static IP addresses (192....
4
votes
0answers
7k views

12.04 does not detect eth0(Atheros AR8162 ) [duplicate]

Possible Duplicate: How do I get an Atheros AR8162 working? Installed 12.04 on dell inspiron 5420. WiFi is working however wired connection does not work. In fact I can't see eth0. Can I know ...
3
votes
1answer
2k views

How to get around NVM Checksum error (PXE-E05) to make the ethernet work?

I have Toshiba Portege M400 Tablet PC with Intel 82573L Gigabit Ethernet Controller. It works fine with Windows, but in Ubuntu it doesn't work! During startup CMOS shows the following: PXE-E05 error,...
3
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2answers
9k views

How to connect two ubuntu computers with ethernet cable

I'm trying to connect with ethernet cable two computers - desktop and laptop. What I want to do is transfer a lot of data from one to another. The problem is that I'm doing everything from: How to ...
3
votes
4answers
17k views

How to get Wifi working on Ubuntu 14.04 (Macbook Pro Retina 15 inch - 2014)

I just downloaded Ubuntu 14.04 on my Macbook Pro Retina 15 inch 2014 version using usb. My problem is I can't get the Wifi working. No wifi connections would display on the wifi menu. I've tried ...