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

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Odd interface when running sudo ifconfig

So, I've noticed an odd looking interface... Apparently, it has it's own MAC address (which I don't even know where it came from... Attempting to perform an OUI lookup on it returns no results...) ...
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109 views

Wired ethernet getting detected but would not connect

My office laptop(ubuntu 12.04 LTS) is getting connected in my office network. But, When I try to connect at home, the connection with my home wired and wireless networks is getting established, but no ...
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65 views

Bridged Adapter internet doesn't work

I have 3 VM that uses Bridged Adapter. The internet was working fine in all of them but suddenly it doesn't even connect. I'm not sure of the problem, but could it be because of resetting my router? I ...
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86 views

No wifi with ubuntu/no ethernet with windows

I realize that due to the nature of my question I might not get answers here, but no harm in trying right? My dilemma is that I recently setup ubuntu 15.10 to dual boot with windows 10. However ever ...
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487 views

Lenovo G580 (Qualcomm Atheros AR8162) wired connection not working after some software update in 15.10

Till Last month(17.11.2015) ethernet connection was working, then later a software update was happened thats all my wired connection stopped working. But still I am able to connect wifi. Output of ...
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46 views

cannot connect to internet via ethernet

as stated i cannot connect to the Internet via Ethernet cable. I can through wi-fi but that is about it. When i run ifconfig -a this is what i get: lo Link encap:Local Loopback ...
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365 views

Ethernet Cable not detected in Ubuntu 14.04 LTS

Ubuntu 14.04 does not detect the ethernet lan cable . Windows detects the same ethernet lan cable. Although ubuntu detects a lan cable which came in the box with router. Please help Here's the ...
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72 views

How do I share my Window's internet with my Ubuntu laptop through Ethernet?

So, I'm really bothered by the fact I can't use my Ubuntu laptop to access the Internet at my house. On my Windows computer, i use my Android's connection through PDAnet, but Ubuntu doesn't appear to ...
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19 views

I have to keep repluging ethernet

I have freshly installed Ubuntu on my notebook Lenovo g780. First of all, I have found it quite slow, even mouse is flashing when I open more than 2 apps. I thought, that I have to install drivers and ...
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I can't connect to ethernet in ubuntu 15.10

In 14.04 32 bit Ethernet worked fine but after installing 15.10 64 bit it doesn't work. My computer can't use WiFi so I have no internet connection at all. I have heard people saying to check ...
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136 views

Gigabit connection not working properly on Ubuntu 14.04

I there, so i should be receiving 200Mbps internet connection speed, but i am only getting 95 Mbps on www.speedtest.net . So i was checking my eth0 interface and it seems to support Gigabit ...
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41 views

14.04 Ethernet does not work

i downloaded ubuntu yesterday and i am unable to connect to internet. I have a HP Stream and neither an ethernet or a wireless connection will work. I use a Linksys usb to Ethernet and a comcast ...
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41 views

Just installed 14.04 LTS on new computer no ethernet

I know the ethernet controller is : Qualcomm Atheros Device e0a1 (rev 10) from lspci, and I think the problem is that I have no network interface adapter. I have no internet access on the computer, ...
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102 views

Ethernet-by-USB not found on new Ubuntu 15.1

I have a fresh install of Ubuntu 15.1 running on a dual boot system with Windows 10 on the other partition. I have the following networking equipment available: Broadcom wireless card installed ...
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27 views

Connected to Wifi but when it drops use Ethernet

I wonder if you can help me finding a solution to my need. I have a lubuntu device which is connected to Wifi but also have the lan cable plugged in to eth port. I want the device to always use Wifi ...
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93 views

Help with routing traffic between a gre tunnel interface to an ethernet interface

Here's my setup: I have 3 ethernet interfaces and a gre interface. I want all traffic coming in from my gre interface to be routed out one of the ethernet interfaces (eth0). Eth1 is a management ...
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121 views

tl9200 usb ethernet driver problem?

My house was struck by lightning which destroyed my adsl/router and landline phone. To my surprise my computer (which is connected but turned off when the lightning strike ) is still working, only the ...
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62 views

Multiple Interfaces on single ethernet port

I want to have an Ubuntu desktop with a single ethernet port configured to have 2 IP addresses. One of the IP should be on the default VLAN (untagged), and the other IP should be connected to VLAN2. ...
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Ethernet Failed on Realtek RTL8101/2/6E 14.04 - 15.10

Ok, I've tried to follow every example I could find but nothing is working. I need your help. One day an update came along and I lost my ethernet. A failed version upgrade eventually resulted in a ...
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43 views

sharing ethernet connection by preserving external DHCP server

I am currently using two workstations at the University, but I only have one single ethernet cable providing internet connection. One of the two workstations (running Ubuntu 14.10) has two ethernet ...
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67 views

Ubuntu will not connect to a wired network

I've seen this question addressed multiple times on the internet, but none of them seem to solve my issue. I have a dual boot of Windows 10 and Ubuntu on my new PC. The wired internet works just fine ...
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1answer
147 views

Ubuntu 15.10 constant Ethernet network freezes/not responding

Lately I've been encountering these issues where my Ethernet connection suddenly stops working. It happens at random times and I can't find anything in the log files. The adapter is Yukon Optima ...
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262 views

Problem with Ubuntu 14.04 WiFi connection

I installed Ubuntu 14.04 LTS a month ago. Sometimes connects and sometimes does not connect on wifi, but the network points appear in the list. How can I solve this problem? In following it is ...
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63 views

Wired connection suddenly stopped working on 15.04

I have installed Ubuntu 15.04 on and Intel NU5i7RYH. Everything worked fine for a few weeks but then suddenly my wired connection would no longer work. Wireless is fine and there is no problems with ...
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307 views

Ethernet Network disconnected

I try to figure it out why my Ethernet Network is disconnected. My Wi-Fi is working. My OS is Ubuntu Mate 15.10, which is up-to-date. Here is the output from lshw -C network: *-network ...
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329 views

Ubuntu 15.10 No USB, No Wifi, No Ethernet

After updating my Dell Latitude from 15.04 to 15.10 I cannot connect through ethernet or wifi and when trying to grab the drivers from another computer and install via USB it won't detect the USB or ...
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49 views

Why only one network works when I try to connect different usb-based ethernet in ubuntu - 14?

I have a HP laptop with one in built Ethernet connector. Also, I have two usb-ethernet adapters. When I connect one connection i.e. in built one, the other connection goes down. Also, many a times, ...
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43 views

BOTH Broadcom controllers disabled

I have Trusty Tahr (Ubuntu 14.04) and the usual advice on proprietary drivers is not working. In 'Additional Drivers' it says about the Broadcom drivers "This device is not working". So I do some ...
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1answer
339 views

Wake-on-LAN broken on 64 bit, works on 32 bit

How can I get WOL to work on 64 bit Ubuntu? It's a wierd situation. The hardware is a heavily modified ASUS G75VW 3D. Windows and 32 bit Ubuntu work fine for Wake on LAN. The motherboard has a minor ...
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96 views

using wifi and Ethernet at the same time for network camera

I have a dlink network camera connected to my ARM board (running ubuntu 12.0.4) using a LAN cable. On the other hand, I also have a USB wiif module connected to my pi, which will be connected ...
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1answer
94 views

Can't ping router with Realtek [10ec:8168] (rev 06) Ethernet adapter

I have a TP-LINK TL-WR841N connected to my main desktop through an Ethernet cable. I've recently installed Ubuntu on dual-boot, but while it works on the other OS, it doesn't on Ubuntu. I've tested on ...
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32 views

Connect to VMWare Player host ethernet

I made the mistake of removing the ethernet connection in Ubuntu. It's running in VMWare Player. How do I set it up again? When I try to add a new ethernet connection, it will just not connect. No ...
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71 views

Issues with multiple ethernet interfaces

I am trying to setup my Ubuntu box with 2 ethernet interfaces(one has a public IP and the other is connected to my internal network). I have flushed my IPtables(using sudo iptables -F) and yet I ...
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68 views

Ethernet connection not working on Ubuntu after booting into windows 10

I am fairly new to Linux, so bear with me. Whenever I boot into windows and then return to Linux, I lose my Internet connection. I do not have a wireless card, so this is by ethernet. This has ...
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458 views

ubuntu 15.04 Ethernet is not working

I recently got a new PC (specs will be shown below). Installation gave me no problem except Ubuntu can not connect to the internet. By the way i am very new to linux. $ lspci -knn |grep -EA2 ...
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Error editing connection Unable to find a connection with UUID ('null')

When I open System Settings > Network > Wired and click options, it responds with the 'Error' How do I fix this?
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Ethernet connection not working on a specific machine

Im using Ubuntu 15.04, and after two days of searching, I can't fix my ethernet connection. The Network Manager keeps trying to connect, but it's permanently searching. Manually configuring it makes ...
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15.10 can't connect to wired connection

I was previously toying with using 15.04 on my office computer, and it worked fine out of the box. This week I decided to give it another shot with 15.10 (using beta 2, then the past 3 days' daily ...
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170 views

Ethernet doesn't work in ubuntu 14.04

During startup the lights around the plugged ethernet cable are flashing, but when ubuntu shows up, the lights goes off and there is no internet connection. "sudo lshw -c net" gives: *-network ...
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Unable to configure network on ETX-BT atom board

Ubuntu 14.04 with kernel 3.13.33 has Ethernet detection problem. I have ETX-BT board with ethernet chip of Intel® i211 (MAC/PHY) Ethernet controller. I am trying to install mini iso uning netbootin ...
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31 views

Ubuntu - Adapter USB ethernet doesn't work anymore

I have a laptop connected to Internet via an USB ethernet adapter at the company where I work. It used to work well until yesterday. Since yesterday, I can't connect my laptop anymore. (other ...
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How to bond wlan0 and usb0

I want to bond wlan0 and usb0 The details of the usb0 is usb0 Link encap:Ethernet HWaddr c6:2f:79:3a:73:a3 inet addr:192.168.42.20 Bcast:192.168.42.255 Mask:255.255.255.0 ...
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59 views

Ethernet suddenly not working on Ubuntu GNOME 15.04

I am running Ubuntu GNOME 15.04 with GNOME 3.16 and this is what happened: Everything was working perfectly fine, I then suspended my machine and removed my Ethernet cable (as usual). Though later on ...
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Dell XPS13 2015 Developer ed. Ubuntu 14.04 Slow wireless

my new XPS13 2015 Developper Edition came with Ubuntu 14.04 installed. It works great, except that the wireless connection is super slow (both home and at work), so slow that most page or process time ...
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1answer
634 views

Ethernet/Wirless does not work on ubuntu 14.04

I recently got a new PC (specs will be shown below). Installation gave me no problem except Ubuntu can not connect to the internet. By the way i am very new to linux. $ lspci -knn |grep -EA2 ...
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25 views

Stop Ubuntu Server from looking for ethernet connection at startup

I set up an Ubuntu Server 14.04 LTS and installed ubuntu-desktop afterwards. I removed all interfaces (except loopback) from /etc/network/interfaces. Both, ethernet and wlan work perfectly fine with ...
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cannot change the wired connection speed

I am using 64-bit kubuntu 14.04, KDE version 4.13.3, kernel 3.19.0-30 on a desktop machine. The LAN interface is Ethernet controller: Broadcom Corporation NetXtreme BCM5761 Gigabit Ethernet PCIe ...
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Get the MAC address of a connected, unlabeled, unconfigured, unconfigurable ethernet device?

Suppose you have some embedded board with ethernet plugged into the ethernet port on your laptop. You know nothing about it's network configuration (yet). You know it boots, but it is headless and ...
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Can't communicate locally on eth0 and to internet on wlan0

Looked at other configuration Q&A about eth0 and wlan0. Nothing suggested seemed to work. Running 14.04 Lubuntu on desktop, and puppyLinux on client laptop. frank@HP-Pavilion:~$ ifconfig "eth0 ...
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Ethernet not working after update 14.04 (64 bit)

After updating Ubuntu a few days back my ethernet has stopped working. The wifi works fine. I even managed to make my ethernet work once using sudo dhclient eth0 but could not replicate it after ...