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

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How can I set a second network interface in ubuntu 16.04?

I'm new into networks administration and I'm having some problems... I'm trying to configure my networks in ubuntu 16.04. The idea is to configure two networks through the same ethernet cable. One of ...
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Ethernet Not Working In Ubuntu 16.04 LTS in dual boot system!

I have a dual boot system with windows 10 and ubuntu 16.04 . Ethernet is working perfectly fine in windows 10 but on the contrary Ubuntu shows "Cable unplugged" . I have been surfing the web for about ...
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How do I get the network connection back after re-boot 16.4

Installed Ubuntu 16.4.1. added Gnome synaptic. it did not come up but was in the startup applications. I re-booted. When Ubuntu came back up, there was no Ethernet connection. I have NO Linux ...
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Ethernet not detected

I have Lenovo Ideapad Y700. Even though i have connected my ethernet. In my network menu Wired connections does not appear. Also I have a dual boot.So whenever i switch from ubuntu to windows. even ...
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49 views

Ubuntu 16.04 LTS Wired/Ethernet Internet Timeout - Not working

I am connecting via Ethernet/Wired Internet and it is working fine too. However after few minutes the Internet does not work even connection was in connecting stage. I disconnected and again ...
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18 views

Ubuntu 14.04 - need ssh access on Ethernet to execute the commands and wifi access to send data

Ubuntu system has two interfaces - ETh0 & wlan0 ETh0 is conected to local test network through switch wifi is conected to Access point Eth0 got ip 172.18.201.100 wlan0 got ip 172.18.202.87 ...
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22 views

No internet connection unless I run dhcient and restart network-manager

I am having problems with my internet connection on Ubuntu 12.04-16.04. Whenever I start the computer up, I get connected via my ethernet cable, but I cannot connect to any IP except my ISP's or my ...
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43 views

16.04 x64 - ethernet not working

Grateful for some assistance. Recently upgraded from ADSL to fiber.Also installed 16.04 x64 - Ethernet talks directly to fiber cpe but not modem. Grateful for pointers. Here's info from sudo lshw -C ...
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Ethernet says it's connected but can't access internet. But i can access internet after 15-30 minutes . why i face this problem?

I am using ubuntu and windows 10 by dual boot. when i boot ubuntu Ethernet says it's connected but can't access internet. But i can access internet after 15-30 minutes if in this time i don't touch my ...
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14 views

How to set up two specific network interfaces for UDP connection?

I would like to make a QT application for a specific PC connected to two other devices using ethernet cables. How to set up correctly to be able to read and write data to every direction? Details: ...
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36 views

Intermittent Ethernet in 16.04LTS

Getting some weird behavior when connected via ethernet. Upper limit of download speed is quite fast, but it takes forever to start downloading and connection drops out quite regularly. Happens often ...
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Ubuntu 14.04 (DB with W10) Ethernet will not attach to network…until it does

So I have been having network problems since I configured Grub to manage my dual boot machine. Ethernet will not configure dhcp automatically when Ubuntu is booted up, and setting the IP manually ...
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Losing wired connection on ubuntu several times a day (segfault)

Several times a day I lose wired network connection. It is restored after a while. Last time it happened, I looked at dmesg and found this: CHTTPClientThre[12511]: segfault at ee931b6e ip ...
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16 views

Losing wired network connection once a week

Since upgrading to 16.04, my linux box at work, which runs day and night, loses connection to wired network occasionally, typically once per week. Usually when I am far away and try to connect... ...
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43 views

Problems with tg3 ethernet adapter after 16.04 upgrade

After doing a clean install of 16.04 Server on my HP ProLiant MicroServer Gen8 server I have problems with random disconnects from the network. The server will run fine between a few hours and more ...
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27 views

Ethernet suddenly broke down

I have a laptop (Thinkpad p50s) with fresh 16.04. There was Ok during month, but today ethernet suddendly broke down without any reason. Wi-fi is working. Also I turn off ipv6 but without success My ...
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35 views

How to change naming scheme for network interfaces of an already installed Ubuntu 16.04?

I want to change naming scheme for network interfaces for the classic one (eth0, eth1, etc). Is it possible to an already installed Ubuntu 16.04 machine?
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32 views

Ethernet connection detected but not connecting to internet

I am using Ubuntu 16.04 LTS . I had completed reformatted and reinstalled Ubuntu 16.04 from scratch . The Ethernet connection is getting Detected as wired connection 1 however it is not connecting to ...
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43 views

How to use wireless(wlan0) and wired (eth0) at the same time?

I am working with an embedded system in my lab and to remotely access the board, I have given a static IP to the board on Ethernet connection. The problem is - due to security reasons Ethernet ...
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67 views

New Ubuntu install and wifi fails, but not on set up

I put a new Ubuntu install on a laptop. During the install I was able to indicate which network connection to use, which it did. Hooked up wirelessly to my router, and even the WiFi on indicator led ...
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22 views

Loss of Internet Connection When Assigning Static IP

After updating an old 'sandbox' type 14.04 desktop computer to 16.04 server to use again for mostly the same purpose, I was attempting to give the computer a static IP, and eventually forward a port ...
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32 views

How to enable ethernet connection on Lubuntu?

I installed Lubuntu OS on my Odroid-XU4. I connected an ethernet cable and also a Realtex Wifi adapter to it. But when I run ifconfig -a, none of the adapters are shown. How can I fix this problem?
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Fixed IP address reset everyday on Ubuntu Server 12.04

I successfully managed to setup a fixed IP address on my server running Ubuntu Server 12.04 by editing /etc/network/interfaces : auto lo iface lo inet loopback iface eth0 inet static address 192.168....
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20 views

Ubuntu only has wired internet connection after suspending

I've installed ubuntu on a computer with dualboot with windows 10. First, it doesn't have internet conection at all, i tried a few things and could not solve the problem. Then, i was going to turn ...
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21 views

Intel S2600CP2J Motherboard Enable Ethernet

I bought an Intel S2600CP2J Motherboard w/Dual E5-2670 SR0KX , 128Gb. RAM. I have successful installed Ubuntu 14.04. The only problem is, the ethernet is is not getting any connection. Is there ...
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Ethernet internet not completely working

I have tried setting up a manual IP. /etc/network/interfaces: auto enp0s31f6 iface enp0s31f6 inet static address X netmask X gateway X dns-nameservers X X ping does not work with my gateway. ping ...
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Ubuntu Server 16 Internet (Ethernet) not working [closed]

Disclaimer: I'm totally new to Ubuntu. I haven't been able to figure this out, and I've looked through a lot of posts online. I have installed Ubuntu Server on a computer. The system seems unable ...
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73 views

Ethernet not working after upgrading to Ubuntu 16.04 LTS

I upgraded to Ubuntu 16.04 from 15.10 and have issues connecting to the internet. Wifi is working but ethernet connection is not working. Every time I connect it gives "Disconnected". For the first ...
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39 views

How to login into a network switch using ethernet cable

I have a network switch which is connected to my Ubuntu Desktop through Ethernet port. I would like to login into the network switch and execute some commands. Can I use Minicom or is there any other ...
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52 views

WiFi / Ethernet connection on RTL8101 & RTL8723BE drops repeatedly every 5 - 10 seconds

My LAN / Ethernet and WiFi are not working properly in Ubuntu 14.04. LAN is connected but net got disconnected in 5 to 10 seconds repeatedly and it is not problem of net because it is working fine on ...
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Can I link windows 10 and Ubuntu over Ethernet? [closed]

I have 2 very cheap desktop computers that both don't have internet adapters I got a adapter for my windows 10 desktop but I don't want to get another for my Ubuntu computer is there a way that I can ...
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I don't have a wireless connection

I have no wireless on my desktop. When I try to connect using the wireless icon on the panel, it says: Ethernet Network (Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller disconnected. ...
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42 views

CHAP authentication failed: bad username or password

I have been trying to connect my Ubuntu 15.10 to the Internet using an Ethernet cable. I have used the command sudo pppoeconf to configure the ADSL. The file /etc/ppp/peers/dsl-provider contains the ...
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33 views

Having trouble connecting to the internet after a power outage

I'm on Ubuntu 16.04 LTS, having trouble connecting to the internet after a power outage. I've checked the network connections and it seems like the system is detecting the wired connection (ethernet ...
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ethernet interface dropping connection intermittently Ubuntu 16.04

I'm seeing an issue where my Realtek ethernet NIC will occasionally drop pings to the gateway. I have isolated the issue to my PC by using other PCs to test the link without issue. The connection is ...
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Ubuntu Server 14 connects on LAN but not WAN

Every time I boot my newly installed Ubuntu 14.0.4, it always says "Waiting for network configuration". When I log in, I have to type sudo ifconfig enp3s8 up to activate my adapter (for some reason it ...
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19 views

Ubuntu 14 cannot connect eth0

I just reinstalled Ubuntu 14. I can't seem to get it to connect to my router... When it powers on, I see it saying in blue letters "waiting for network configuration" or something. When it eventually ...
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tshark, listen to port does not work

How to listen to the port? Just connect to host (IP, e.g google.com): sudo tshark -i eth0 -H IP // not working sudo tshark -i eth0 -H "IP" // not working sudo tshark -i eth0 host IP // not working ...
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LAN to LAN communication not working while internet works fine. (Ubuntu 16.04 LTS)

I have 2 ethernet WLAN ports on my PC1 and 1 ethernet port PC2. I have a small piece of code that sends and receives packets through ethernet port from PC1 to PC2(LAN to LAN communication). ...
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Why would ethernet not work after setting up dual boot?

So I have been setting up Ubuntu 14.04 on a separate ssd in my desktop for some machine learning development. I had been manually disconnecting my Win10 side or my Linux side whenever I was booting ...
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21 views

Problem related to ethernet port

I can connect to internet only via WiFi and USB dongle. My LAN port doesn't seem to be working. When I connect my ethernet wire the lights of the port blink. And system detects it. But is never able ...
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Share Wifi over Ethernet with PS3

Currently I share the Wifi on my laptop to my PS3 over ethernet due to PS3 weak wifi. In Windows 8.1 all is running smooth. I open the Yotube app on my PS3 and I get full HD. I tried to do the same ...
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96 views

MacBookPro11,3 Thunderbolt Ethernet issue with Ubuntu 16.04

Good Day All, I have been having issues getting Thunderbolt ethernet to work in Ubuntu 16.04 on my MacBookPro11,3. If anyone has any experience with this issue, I would appreciate the help! Regards, ...
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routing confusing… server -> PC (wifi -> ethernet) -> laptop (ethernet)

As mentioned. Server ip 10.1.1.1 <-> wifi router 10.1.1.5 <-> PC wlan0 10.1.1.10 & PC eth0 static 10.1.1.6 <-> laptop eth0 static ip 10.1.1.20 Now I cant ping the laptop from server ...
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Raspberry Pi 2 Ubuntu server ethernet not working

I have installed ubuntu snappy on my raspberry pi 2, and everything works fine. It is connected to myb router using an ethernet cable. The ethernet lights are turned on, but my router does not show my ...
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VMware Mac OS X 10.11 on Ubuntu Shared Connection Problem

I've just installed Mac OS X El Capitan 10.11 on my Ubuntu host pc and I cannot connect to the Internet, when I go to settings in Mac OS it just displays no ethernet connection is found. How can I ...
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Ethernet doesn't connect in Ubuntu 16.04

I have tried editing /etc/network/interfaces and adding allow-hotplug eth0 iface eth0 inet loopback and auto eth0 iface eth0 inet loopback and auto enp1s0 iface enp1s0 inet loopback and ...
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Ubuntu 16.04 not seeing Ethernet card

I have a PC with Ubuntu 16.04. I have been using it for 2 months and everything was good. I connected manually to Internet using sudo pppoeconf and then system had been doing it automatically ...
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75 views

Ethernet and WiFi not working on Ubuntu 16.04 [duplicate]

I recently upgraded from 14.04 to 16.04. Ethernet and Wifi are not working. I tried plugging in the ethernet cable but it did not work, Dialogue box appeared saying "Ethernet disconnected". I ...
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38 views

Usb-Eth converter problem - Ubuntu 14.04

I'm using a usb-eth converter manufactured by Digitus. Link; http://www.digitus.info/en/products/network/fast-ethernet-network/network-interface-cards/fast-ethernet-usb-20-adapter-dn-10050/ Device is ...