Ubuntu :: Unable To Show Available Ethernet Connection?
Feb 9, 2011
I have a 64bits laptop with dual boot (Vista + Ubuntu 9.10) and nVidia chipset. Earlier, I could connect to internet using both the OSs. But now, when I insert the network cable (RJ-45) in the network port, neither of the OSs recognises the network cable. When I click (left click) the network icon in ubuntu (in the right top corner of the desktop), it does not show any available ethernet connection.
I checked in BIOS also there is no mention of network card. Following are the details of the laptop:
eth0 Link encap:Ethernet HWaddr 00:22:20:06:ac:19
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
[Code]...
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Sep 13, 2010
Unable to access our site via eth0. Can access the same site, via same ISP on wireless laptop, or via eth0, but using ip annonymizer service. Have a feel that it could be something obvious, but after digging through Modems firmware I am running out of ideas
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Dec 5, 2010
I have just installed ubuntu 10.04 using the wubi installer to dual-boot my machine. Under ubuntu, I am not able to connect to the internet or my router. Everything works fine under windows. I have tried to find relevant information in the forums, but nothing seems to work for me. I have tried disabling ipv6, setting a static ip, but no go. ifconfig shows no IP, dhclient results in no DHCP offers and pinging my router's IP results in Network is Unreachable.
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Mar 1, 2010
I have got a laptop running Debian squeeze. I wish to share the wireless connection of the laptop (wlan0) to the ethernet port of the laptop, so that I can share the wireless connection to my desktop PC which is connected to the ethernet port.
[My desktop PC]---Ethernet---[My laptop]---))) WiFi )))---[Public network/ ISP]
I have read the article on Ubuntu community: [url]
I followed the steps, and the /etc/network/interfaces file on my laptop is:
Now the situation is: My laptop can connect to Internet (i.e. ping debian.org from laptop is fine), my desktop PC can connect to my laptop (i.e. ping 192.168.1.1 from desktop PC is fine). However, the desktop PC cannot reach the Internet.
I also read the information on Debian Wiki: [url]
It seems I must install and configure ebtables before sharing my wireless connection to ethernet port. Is it true? (But why the article on Ubuntu community doesn't mention it?) Or I just made some mistakes?
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Jun 25, 2010
I would like to have all traffic from the ethernet connection out through the wireless (basically using the box as a router) however I am having some trouble doing this.
I have done this before on Windows however I am having some trouble doing this on linux, I have tried using Squid Proxy however I am having some trouble using configuring/using it.
I am using Yellow Dog Linux however I am willing to change to any other distro as long as it is compatable with PS3 (as this is what im using linux on)
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Apr 4, 2010
how to use a ethernet conenction(Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller )in ubuntu...my internet requires user name and password ..can u even tell me how to config the user name and password
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May 11, 2010
I installed 10.04 today, and I can't get any connection through the LAN. I've tried some stuff on my own, but I've been unsuccessful so far. It's not a hardware or connection issue, as it works perfectly fine in Windows 7. I haven't had this issue in any previous version of Ubuntu (or any Linux distro for that matter).The weirdest part is I booted from the installation CD as as LiveCD, and everything worked perfectly fine. It only stops working after I actually install it. Here's the results of ifconfig:
eth0 Link encap:Ethernet HWaddr 00:17:31:d8:d5:76
inet6 addr: fe80::217:31ff:fed8:d576/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
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Feb 13, 2010
i shut down my ubuntu karmic for a bit. turned it back on after an hour or so and now i have no network connection. i checked all the obvious things like cords etc wife's computer is connected through the same router / modem and no probs here.i even replaced the card in mine.
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May 3, 2010
I just upgraded to 10.04. I had wireless connection for 1 day and now nothing. No ethernet connection either. I CAN use both wireless and ethernet using my machine on Windows.....so the connection stuff does work. Here's the output of of the commands I got from the "sticky". I can't display the output as this forum puts it all together as one continuous sentence with no line break!
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Jun 6, 2010
I'm trying to set up a shared Internet connection that had been broken by a previous update, I believe. Eth0 is connected to the Internet, whereas eth2 should be the connection going to my Roku set-top box. Under the nm-applet icon, an entry exists for "Auto eth0" for the first card, but there is nothing under the second card except "disconnected". How do I make a connection entry under my eth2 card so that I can share my Internet connection with my Roku box?
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Jul 27, 2011
When I start my Ubuntu machine, it says "eth0 connection established". But i could not able to ping to other machines available in LAN & also to Internet.
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Mar 9, 2010
I just built my first pc, installed ubuntu 9.10 and tried connecting to the net through my ethernet cable and all that happens is it says cannot find server. Do I need to install network settings & if so what & where,or should it automatically detect them? As this is my first build I am a novice but am willing to listen & learn.
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Jul 23, 2010
i've just got a new broadband/wireless connection from Virgin Media and am trying to get this very old laptop online. in the past, cable connections have been easy, and wireless has given issues, but this time its the opposite. so, i have a new cable connection that is all plugged in. called customer support, they have no support for linux as usual, but they 'manually activated' the modem and thats all they can do. i am not trying to setup the wireless network yet, i'll do that with a pc later, for now i just want to plug in and go. on Network Settings, i have set the wired connection to dhcp. thats what i've done before ... not sure if i need to get static addresses from the ISP? i can go online now using the erratic but generous neighborhood free wireless.
ifconfig -a gives:
Code:
ath0 Link encap:Ethernet HWaddr 00:14:A4:1E:3E:65
inet addr:192.168.1.66 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::214:a4ff:fe1e:3e65/64 Scope:Link
[code]....
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May 7, 2010
Following upgrading my 09.04 partition to 09.10 then 10.04, all was working fine until I tried hibernate out for the first time - big mistake! If I can get to a position where i can log on to the system, I find that my ethernet network connection is disabled and I cannot get it to restart. My 09.10 system still works ok. I am tempted to do a clean install of 10.04, even though I'll have to spend some time reloading the extra's and re-configuring.
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Jun 17, 2010
I just installed 10.04 on my new netbook and I am suprised to see that the ethernet is not recognized. When I run
Code:
ifconfig eth0
the result is
Code:
no such device
The machine was working fine before I installed Ubuntu. I am suprised to see this problem as I have already installed it on a few machines without any problem such as this.
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Jul 24, 2010
I have a HP Mini running Ubuntu Desktop 10.04, and I cannot get a wired connection to work. My network card is "Broadcom Corporation BCM4312 802.11b/g (rev 01)", and I have the restricted drivers for the card installed. Wireless works fine, though.
My /etc/network/interfaces:
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Sep 21, 2010
I am trying to run a cable from my wireless router over a 75ft cat6 cable to my bedroom. I don't get any connection on my end and I don't have any other ideas. I did setup a m0n0wall box just to try. I got the network led on my server to light up in my room but nothing more than that. Lastly, I tried adding a 5 port switch in my room and then connecting that to my server and nada.
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Sep 26, 2010
When I use Rhythm Box for any length of time, my Ethernet connection won't work until I shut down the computer and start it up again after several minutes.
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Aug 5, 2011
After some fiddling around, I have come to the conclusion my current wifi access point hates my other computer's Broadcom chip or the drivers thereof. So, my current idea is as follows. I would like to use my netbook to connect to the wireless network, and then connect my other computer to it through ethernet. My netbook is dual boot XP and Ubuntu (think Ubuntu is a version behind) and I would be fine to set up this sharing in either and just leave it on as a repeater station. My other computer is dual boot XP and Fedora and I would prefer this work to allow me to have network in both. I have a straight-through cable and have verified that my network card supports the automatic crossing over behavior.
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Aug 9, 2011
I just upgraded my Ubuntu Server from 10.04 to 11.04. I am having issues with the ethernet connection upon boot. The connection will blink slowly and not stay connected to the network. If I then unplug the ethernet from the switch and then replug it in, eth0 will get a steady connection, at which point I have to run the following command to get everything working.
Code:
sudo dhclient eth0
After running the command I have no issues with the ethernet connection.
lshw -C network
Code:
*-network:0
[Code]...
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Mar 1, 2011
I have installed ubuntu 10.10 on a hand me down computer and put a new network card in it (planet ENW 9503) i have managed to locate a linux driver for it from planet.com but i have no idea how to get it to work i have tried a few things it says to do in terminal. everything i have looked up needs an internet connection?
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Mar 1, 2011
I have installed ubuntu 10.10 on a hand me down computer and put a new network card in it (planet ENW 9503) i have managed to locate a linux driver for it from planet.com but i have no idea how to get it to work i have tried a few things it says to do in terminal. everything i have looked up needs an internet connection?
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Aug 19, 2011
So I have been struggling to make this happen for a bit and cannot figure it out. I want to communicate directly from my non-GUI Debian to my Puppy Linux PC. I have set up my Puppy PC for direct connection as per the instructions in the network wizard. I need to set up my Debian to do the same.
I have done the
auto eth0
iface eth0 inet static
address 192.168.0.100
netmask 255.255.255.0
in /etc/network/interfaces.
I still cannot ping the Debian machine from the Puppy one. Are there any other steps to the direct connection? (I already have the crossover cable in place)
I have also tried this with both PCs connected to a Netgear router. I CAN connect to the debian machine if it is on the router at the IP I assigned it and the Puppy PC is configured to use the router.
Is there a file I can edit or a process I can turn off? I think it's close I am just not sure what I am missing.
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Jun 15, 2010
I purchased an EeePc 900HD (ASUS). Installed EeeBuntu_3.0 when I run "lshw -c network". I got a "DISABLE" status for my ethernet connection. In this forum I read that I need to run:
"ifconfig *logical_hardware_name* up"
The "DISABLE" status is gone but still no ethernet connection in the Gnome-NetworkManager.
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Sep 18, 2010
I updated to the latest available kernel for Kubuntu 10.04 today (2.6.32-24). When the system rebooted, it refused to connect to my wireless network. So far I have been unsuccessful in persuading it to connect. ifconfig shows the existence of the ethernet connection as eth0, and Network Manager also seems to accept the existence of the ethernet port - so why has it suddenly chosen now to stop connecting to the wired network?
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Sep 26, 2010
I'm been wanting to try Ubuntu for a while now, and when my mom's netbook started to get insanely slow with WinXP, I tried the Netbook Remix on a USB stick. I LOVE it, except I am unable to get the wireless working, which is the only thing stopping me right now from a full install.
I believe my problem is that I need to activate the two drivers "Broadcom B43 wireless driver" and "Broadcom STA wireless driver" which appear as unactivated when I go into the hardware drivers admin tools. Unfortunately this netbook (HP Mini Netbook FW376UA) does not have an Ethernet port, so I can't just temporarily hard wire it to activate these drivers.
So my main questions are: 1) How can I activate those drivers without an internet connection?, and 2) Do you think that activating these drivers is indeed the answer to getting the wireless working?
The details:
Machine: HP Mini Netbook FW376UA
Network Controller: Broadcom Corporation BCM4312 802.11b/g
Ubuntu version: Ubuntu 10.04 Netbook
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Nov 30, 2010
Just noticed that auto connection to my wired ethernet is not being established after restarts I'm making. Never recall this in the past. I do get an auto connect when I shutdown and restart. I'm using 10.04 LTS Lucid Lynx.
Also have noticed that nearly every upgrade over the past week or so is calling for restart to complete the upgrade. Can there be any unwanted problems in doing several upgrades over a period of several days before doing the restart? I'd like to think not.
As you can imagine these two issues together are causing some lost time.
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May 16, 2011
I was browsing the available packages to install the weather indicator and noticed that a network indicator was available. apt-get said that it needed to install 'connman' and remove 'network-manager' and 'network-manager-gnome' in order to install the network indicator. I foolishly assumed it knew what it was doing so I went ahead and performed the installation/removal and restarted the computer.
Now I cannot connect to the internet. I only have an ethernet card for connection to the internet, no wireless or otherwise. The configuration I use is not DHCP, but a manual settings of address/subnet/gateway and name servers
When I try to set the network values through the network indicator some of them do not stay set. The gateway value appears to be set, but then after closing down the indicator window completely it comes up with the value 'Modified'. The DNS servers is the only other value that does not stay set, but it only changes to be blank. The connection never works.
So, I downloaded 'network-manager' and 'network-manager-gnome' on another computer, transferred the packages by USB, and reinstalled them (uninstalling connman and the network indicator). But the network connection remains broken. At least with 'network-manager-gnome' the values I set stay set, they just don't work anymore. I've tried editing /etc/network/interfaces to previously working values directly, but they do not seem to have any effect either. The connection no longer works.
I really do not care if I use the network indicator or not at this point, I simply want the network connection to work properly.
Edit: I realize I forgot to say that I'm using Ubuntu 11.04 (upgraded from 10.10). The network card is the "Integrated Broadcom 57780 Gigabit Ethernet controller".
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Jul 24, 2011
I have two laptops (Dell & Lenovo), both have wifi.
I am having one wired Ethernet connection.
I want to share this Internet connection among two system , to access Internet from both the system.
I had tried by creating a wireless network, but was not able to do so.
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Jul 25, 2011
I have installed Ubuntu 11.04 using Wubi through Windows 7. It seems to be working but it will not connect to my wired internet connection. It tells me there is no wired connection, when there is. I used sysinfo and its not showing any network adapter or controller. I have a board with nvidia nforce go 430, could it be a driver issue. It works fine in windows though. Tried using a wireless adapter and all is working. But why doesn't the wired ethernet connection work.
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