Ubuntu Networking :: Wired Internet Out After Updates Downloaded
Jul 3, 2010
Hardware: 5 year old Compaq laptop: Presario V4000. - Intel Celeron M Processor 1.3 GHz System: Ubuntu release 10.04 lucid - Kernel Linux 2.6.32-23 - generic - GNOME 2.30.0 Uses a wired connection through a router SEQUENCE OF EVENTS Friday evening - June 2, 2010 Sytem was working OK. Downloaded Ubuntu updates. Put laptop into Suspend mode. Turned off master power at surge protector. about 4 hours later tried to Unsuspend. Could not Unsuspend Pressed power button on laptop for several seconds to shutdown laptop. Saturday morning - June 3, 2010 After Ubunto booted up, launched Firefox. No internet access. File-> showed "Work Offline" checked. Unchecked it, but that didn't fix the problem. Rebooted, and still no internet. Tried an alternate cable (which was working with a desktop Winows XP computer) between router and laptop. Still no internet. Used terminal to ping the IP address of the router - ping unsuccessful.
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Feb 7, 2010
I recently installed Ubuntu 9.04 off of a disc and it worked perfectly, however after I downloaded and installed the system updates from the update manager, it stopped working and it won't even see my device. I have a Zonenet ZEW2500 USB wireless adapter.
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May 21, 2010
One of the (many many) problems that I had with Ubuntu 10.4 was that I wasn't able to connect using a wired. It really came to me as a huge surprise, because that's a problem that I have never encountered. I had dealings with wireless-issues in the past. But never a wired connection failed. The thing is that we (in the dormitory where I live) had a network problem recently. A hardware piece got fried and we weren't able to replace it for about 3 weeks (go figure :X ). But in the past 3 days or so we're back online. The thing is - none of my neighbours (all of them are using Windows) has network issues now. Usually it was on the contrary - I was the one who had beautiful connection while they had to deal with a load of d@ng. That said - I made a fresh install of Ubuntu 9.10. The problem got resolved and I was as happy as a chick during her first wedding night with Don Goivanni in her bed. BUT after I updated (note - update and NOT upgrade) my system, I was suddenly unable to use the wired connection. The strange thing is that the NM says that I am connected AND I even get some short bursts of network traffic (last for 2-3 seconds) but usually not enough to load even a simple web page. Ping always returns 100% loss no matter how long the package burst lasts. I have slept this night for about 3 hours looking for a solution. None has been found so far. I don't have WAPs at home so wired connection is the only way for me to use this modern thing called internet.
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Jun 3, 2010
I have a dual-boot Compaq CQ60-420US laptop. It can connect wirelessly in Vista without a problem. I have not yet figured out how to connect it wirelessly in Ubuntu (10.04, Lucid), but that's not the problem here. The problem here is on the wired side. Whether I boot in Vista or Ubuntu, I cannot get it to go online. Ubuntu says that the Auto eth2 connection is established; I am able to disconnect and reconnect it normally; but I can't download updates and Firefox can't connect to CNN.com. Likewise, in Vista, diagnostics find no problem; everything seems to be fine; but no connection.
I thought the problem might be the laptop's ethernet port, so I bought a Trendnet TU2-ET100 USB-to-Ethernet adapter. It comes highly recommended; it seems to have installed successfully in Vista; it appears properly in Vista's Network Connections; its lights are blinking appropriately; and Ubuntu tells me that my Auto eth2 connection is established when I connect through that adapter. And yet still no connection to CNN.com and no downloads of updates in either OS.
I wondered if some other circuitry might be at issue, so I sent the laptop back to HP. They claim to have replaced the mobo. The symptoms remain unchanged before and after. I went through an extensive tech support call with HP. The last thing their technician could advise was to power cycle the laptop and router. The ethernet connection itself is good. I can unplug the cable from the laptop's ethernet port or the Trendnet unit, plug it into the desktop computer on which I am typing this note, and I'm connected with no problem.
I thought, well, maybe I have to have the laptop's wireless button on, even when I want to connect via wire, but that hasn't made a difference. I tried installing Windows drivers from the Trendnet website instead of from the CD; no joy. I suspect you will be as stumped as I am. I have gone through a lot of other people's comments. At this point, I am just interested in general possibilities. What, in theory, could be causing this?
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Jun 1, 2011
I just installed Ubuntu 11.04 desktop on my desktop in dual boot with Windows 7.
Heres my problem, I am unable to connect to the Internet even though my wired Ethernet connection says it is connected normally. The wierd thing about this is that I also have a wireless card in my desktop and when I connect through that I am able to connect to the Internet. I am connecting to a router that is functioning as a repeater to my main router/cable modem. I have tried to solve this myself but am having no luck. Ironically, earlier today suddenly my ethernet connection worked for a few minutes without me modifying anything.
The output of some terminal commands are below.
Quote:
Quote:
Quote:
However a pint to that ip address (my router) is successful.
Quote:
Hosts.allow and hosts.deny are both fine (not blank but no entries)
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Jan 8, 2010
I just got a new power supply in my old desktop, and installed ubuntu on it. I've got three NICs in there (for a later project), and when I connect my cable modem to any one of the NICs, then little connection triangle-spinny-thing in the upper-right tries to connect. But it never gets all the way connected.
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Feb 21, 2010
I have a problem connecting to the internet using Ubuntu 9.10 . But the same works fine in Ubuntu 9.04.. First I thought it was my hardware problem and asked my friend(also was using ubuntu 9.04) to try ubuntu 9.10 but he too failed to connect....
I have an wired ADSL Modem given by my Service Provider. When I switch on my modem the router gets connected but it cannot connect me to internet...
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May 4, 2010
I recently did a fresh install of 10.04 from 9.04 and since then I am unable to use Internet. However my ethernet connection is working fine, as I am able to login to modem and check configuration. I reinstalled twice, downloaded fresh 64-bit & 32-bit and also followed kernel update steps as in few forum posts, but no joy. The firefox is throwing an error "The connection has timed out". My internet connection is working fine as I am able to use my Windows Laptop to post this message. I checked system > administration > hardware drivers and couldn't find any unsupported hardwares.I had similar issue when upgrading to 9.10, hence stayed on 9.04. When I looked at LTS image, I couldn't resist and cleaned up 9.04.
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Jun 1, 2010
When I unplug the ethernet cable from this laptop and plug into my Ubuntu 9.10 Desktop I get a wired connection automatically but I have no internet connection in Mozilla
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Oct 18, 2010
I have been using lucid ubuntu 64 bit on this pc for months with no problem till yesterday. I noticed yesterday that eth0 was no longer being set up on boot and so internet is not there now. I am currently on the internet using karmic ubuntu.
I'm thinking an update with aptitude? What can I do in lucid to get my networking working? I tried booting into recovery mode and repairing packages but my pc could not get on the net to check the packages.
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Nov 10, 2010
I just installed Ubuntu 10.10 tonight on my Acer Aspire One D250 and have no internet at all. I know both the wireless and wired internet work, as I am dual booting WinXP as well.
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Mar 26, 2011
I am a Ubuntu novice who recently shifted completely to Ubuntu 10.04 from Windows 7 on my Dell Inspiron Mini.
1. I am able to connect to the internet ('Wired') at home but when i plug in the internet cable at work it is not connecting. It gives me the message 'Unplugged, you are now disconnected'.
2. I tried installing the Wicd network manager. Even though there are wireless networks in range it doesnt show me the wireless networks (like it used to show in wiindows).
I have read through a long list of commands in the forums of commands to be executed and executed them all but couldnt connect. Is there anything basic that I am overlooking?
I thought that wired network should work once I plug in a network cable irrespective of the place. How come I am unable to connect to the network at work? I used to have a windows 7 partition and the net connected plug and play when i was in the windows side. I dont want to install Windows just for the internet at work again.
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Apr 3, 2011
I no longer have a Auto eth0 connection. I am running 10.04 and have not done any major changes. Here is my ifconfig -a:
Link encap:Ethernet HWaddr 00:1a:a0:97:65:a9
BROADCAST MULTICAST MTU:1492 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[code]....
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Jan 16, 2011
I just want to use Internet Connection Sharing (ICS) to connect to the internet. I have done a massive amount of troubleshooting, but some of it seems to contradict itself, and the only two things that I know for sure are that it used to work, and that my Ethernet cable is not the problem. When I use Terminal utilities like ifup and dhclient it seems that it can not determine IP information, but when I try to put it in manually, the "Apply" button grays out right after I finish typing it in. When I try to connect normally, in KDE or GNOME, the icon acts like it's connecting, then instead of having the connected icon, I receive a notification that "the network has been disconnected", and it goes back to the disconnected icon.
Oh, and by the way, I know that I could probably find a workaround, but I have limited resources, and this used to work. The Linux is a Dell desktop with Fedora 12 and the Windows is a Windows 7 HP laptop.EDIT: I hope that I didn't mess something up, but I accidentally used system-network-config to try putting in the IP address there, and ended up changing it back to the original settings, but the computer is now calling it Auto Ethernet in the taskbar icon, although sudo iwconfig in the terminal still calls it eth0.
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Jan 31, 2010
After installing UNR onto my dell mini 9 and downloading the correct drivers to enable wireless internet (using this site: [URL]), I decided to load ubuntu onto my brothers netbook. After the installation completed, I went to do complete the steps listed in the above article, however I was unable to connect to the internet using an ethernet wire.
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Mar 6, 2010
I installed ubuntu 9.10 on my laptop a few days ago and love the OS so far. However, initially i could only get internet connection though an ethernet cord. After much internet searching, i finally figured out how to get wireless internet. Unfortunately, in setting up wireless internet, I no longer have wired internet. The system doesn't seem to recognize my wired internet anymore. I'd like a scenario where i can connect to the internet both wired and wireless.
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Mar 20, 2010
I've been running ubuntu for about 6 months, so i'm still abit of a newbie at linux but heres what im having issues with:I'm having troubles connecting to the internet on ubuntu, i have no problems connecting on xubuntu on the same machine. I can connect to my network but i cant access the internet on firefox or snaptic or any of that, but the weird thing is i can successfully ping address' in the terminal. I can also connect to my router config page in firefox using 192.168.0.1.
My internet worked perfectly about a month ago on this ubuntu install, so i cant figure out what i did to make it stop working. I think it may have something to do with the/etc/resolv.conf file because it only exists as /etc/resolv.conf.tmp and when i run "sudo dhclient wlan0" (or eth0) it says:
ubuntu@ubuntu:~$ sudo dhclient wlan0
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
[code]....
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May 24, 2010
I installed Ubuntu 10.04 into my compaq notebook. The problem is that I am not able to connect to my wired broadband internet.
Here are the details of my attempts so far:
1)"ifconfig -a" gave 2 devices eth0 and wlan0.
2)"pppoeconf" was unable to detect any ethernet cards.
3)Each time I plug in the LAN cable , the network icon would say "connecting" and ultimately result in "disconnected.Now in offline mode".My ethernet device is Realtek PCIe RT8101E/RTL102E (rev 02).
I also tried to install the realtek driver though I was not confident whether I did it correct.
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Jun 2, 2010
I have BIG troubles trying to set up wired internet connection in Ubuntu! To be able to connect to the internet I have to enter my MAC address, 2 IPs, netmask and 2 DNS address. When I try to edit the default internet connection eth0 with my correct information, the minute I enter my MAC address and save the changes the network manager creates new internet connection with wrong data and use it instead! I can't select the correct internet connection from the top bar where the internet icon is, because it is just not there. The only connection that I can choice is the new default one with the wrong data! If I try to create new separate internet connection with my correct data the same thing happens! The moment I enter my MAC address and save it, the internet connection disapears from the list of internet connections in the internet area in the top bar and I can't select it. I tried googling it, but with no luck I think that if I set up my connection trough the terminal everything will be ok
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Aug 14, 2010
I have had the exact same set up 10.04 on the same machine connecting to the net with no problems. I had upgraded from an earlier version.
This time with a fresh install from disk the network manager does not see any connections. How can I get the manager to recognise the network and connect to the net?
I realise that it would help if I posted up the output of some commands in a terminal but I am writing this on my phone and can not cut and paste large chunks of text. I can only hope for some advice until I can get to a computer with a working connection.
Ubuntu 10.04 AMD dual core 64 bit with wired 10 meg broadband.
How can I get the network manager to see the connection
How can I find the MAC address?
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Aug 17, 2010
I've installed Ubuntu 10.04 on my classmate's Lapie after he got frustrated with Windows 7
Everything is fine except LAN connection wired one...
Can anyone tell me how to confiure that..& from where ?Like his IP addressis 192.168.68.10 with subnetmask 255.255.255.0
Plz guide me for this...Bcz many of my fellow hostelmates are for Ubuntu if I configure it out.
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Sep 18, 2010
I have an old Compaq Presario v2000 that recently had Ubuntu 10.04 installed on it. The wired internet worked when it was installed, but the wireless didn't. I tried to download the drivers for it and it failed everytime. I did an update thinking that the update might fix the wireless, but it didn't, it actually made my wired connection stop working. So now I have a newly installed OS on the laptop, and I can't do anything on it because there is no way to get any internet.
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Oct 4, 2010
The netbook wired internet was working fine UNTIL I reset the internet modem! and then it no longer was able to connect to the internet.
I read several threads and did sudo lshw -C network
It said network disabled
ethernet interface
Atheros AR8132 lic gigabit ethernet adapter
physical id 0
bus info pci@0000 :02:00.0
sonia@sonia-laptop:~$ sudo lshw -C network
[sudo] password for sonia:
*-network
[Code]....
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Oct 15, 2010
currently running ubuntu 9.10, the internet connection im hooking up to is a router from a friends personal dish internet (were all deployed to Afghanistan). Here is all the static information that i need to input.now i have all this information input in windows 7 and it works fine since its all broken out exactly how it was given to me in the ipv4 settings page. wicd in ubuntu however wont use these settings.
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Oct 21, 2010
I am having occasional internet connection problems on startup. 1 out of 5 times that I start my computer, I will have absolutely no internet connectivity, can't ping my router, obtain ip. nothing. Tried re-establishing connection with no luck. Status light on my router displays a slow flash. I restart, problem solved. Not so much a major problem, but irritating at times
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Nov 4, 2010
I've just installed the 64 bit 10.04 onto my new netbook, with ample specs to run the full desktop version rather than the stripped down netbook version. My only problem (at the moment) is that my wired internet connection is not recognized within the operating system, yet while I was downloading/installing Ubuntu it had no problem finding and using the connection then. When I boot into Windows 7 or plug the ethernet cable into my Mac, the connection is established immediately, and no need for manual entering of anything because everything is auto-detected. The really strange thing is I've run Ubuntu off a USB stick and when booting off that the wired connection was immediately recognized after startup.
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Jan 15, 2011
I'm running Windows 7 and Xubuntu 10.10 on a dell pc. My wireless works fine when I run windows 7, but on Xubuntu, the wireless doesn't even come as an option. When I try to plug in the wired connection, it loads for about a minute then tells me I'm disconnect. The option for the wired connection is there, but when I try to click it, the same thing happens. What do I do?
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Jan 26, 2011
Just installed ubuntu 10.10 on a Compaq Presario X6000 laptop... installed it inside Windows 7 and now I'm having problems going to the internet (wired.. or wireless).
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Apr 28, 2011
I had shut down my laptop at work last week and when I booted it up the wired internet connect was not working.The wireless connection is working (I'm typing now via wireless).I have WinXP Pro on this machine (but I've never used it--I'm all Linux now). So I booted into WinXP and turned off the wireless and got internet connection through the ethernet cable, so it doesn't seem to be the cable or my ethernet card.Here is the output of "ifconfig"
Code:
eth0 Link encap:Ethernet HWaddr 00:1c:25:7a:fa:b6
inet addr:xxx.xxx.xxx.xx Bcast:xxx.xxx.xxx.xxx Mask:255.255.255.0
[code]....
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May 4, 2011
i recently connected this router to mahh modem..http:[url]....before router connection i was able to connect to internet via "pppoeconf command" but now i am not able to connect to internet from ubuntu ..i am still using lan cable coming out or router to connect it with pc..
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