Ubuntu Networking :: Wired Networking Not Working At Work - Fine At Home ?
Aug 24, 2010
I just started having a problem with my 10.04 laptop a few days ago, maybe Thursday, last week. When the computer is plugged into my home network (standard 192.168.1.1 sort of IPs) it works fine, but when I try to connect to my work network (130.15.90.XX) I am unable to pick up an IP. The router in my office is working fine, all the windows boxes can connect.
I've also noticed that when the computer is plugged in at work the notification icon for the networking indicates it is looking for a wireless connection (rather than the normal up/down arrows), even if wireless is deactivated
I can set a static IP in /etc/network/interfaces and everything works, so it seems to be a DHCP problem?
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Jul 24, 2010
Everything seems to be fine while she is connected via Wireless. When she plugs in the wired connection a problem occurs, it seems that every SSL Site and/or encrypted Website cannot be shown on her Notebook, for example shopping at Amazon.com. The Problem does not persist the whole time, sometimes it works for a few seconds and you are able to fill your cart.
Other Informations: The Connection has been tested with Windows 7 and with Ubuntu (USB-Live-Stick Lucid)... no difference.
Is it possible that her Hardware is not running correctly? What should we do next?
Tomorrow we want to reset the computer to factory default status.
Are there any possibilities of testing a SSL Connection using the Terminal?
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May 30, 2010
My wired network is not working! This is the result of ifconfig -a:
Code:
eth0 Link encap:Ethernet HWaddr 00:1c:25:3e:fe:50
inet6 addr: fe80::21c:25ff:fe3e:fe50/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
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May 30, 2011
I'm fairly sure that this is an Ubuntu issue, as I've tried this on my windows computer with success.I'm running a minecraft server on my laptop, previously over a wireless connection but the data rates were too slow. On a wired connection, however, the server starts up and runs like normal but the port is not open when accessing from the network's public IP. I tested this with canyouseeme(.)org. I can get to it from other computers within the network by using a local IP, which to me seems a little strange as it seems to indicate that the port is open on the PC but somewhere in the router it gets confused due to being wired(?). Obviously I've forwarded the ports on the router (BTHomehub 2.0) with both TCP and UCP (it worked over wireless!). Any suggestions as to what might be causing this? I'm stumped.
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Feb 8, 2010
I have wubi Kubuntu installed and had no problems with wireless at home. Starbucks uses the Bell network for free wireless access, and in Windows I can use it without problems. It is the typical free network, that immediately asks you for a login name when you try to use a web browser. When I do it in Ubuntu at Starbucks, it sees the network and "activates" it, but when I go to Firefox, it does not ask for the typical login information. It can't find any web pages at all.
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Nov 6, 2010
Wired and wireless networking have been working flawlessly for years on my HP Compaq 6710b laptop. Several weeks ago, after an automatic update via the update manager, my wired network stopped working. I did not notice it directly, since my wireless connection took it over. I only noticed it when I had to work in an office where I didn't know the wireless password.Since then, I have been trying several things and searched several forums. It is hard to find any troubleshooting information about wired networking, as most of the problems seem to occur with wireless.
I did verify that there is no hardware problem. My laptop is dual boot and when I boot the other operating system, the wired network works without problems (as does the wireless.)My Ubuntu version is Ubuntu 10.04.1 LTS. My kernel version is 2.6.32-25-generic i686. I hope anybody can help me getting my wired network working again.
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Jun 21, 2010
I have been looking around the forums searching for similar problems, it seems not only me had this problem. About a month ago I did a regular update via Upd Manager. The next day - no wired connection.Still managable, since the local library has wireless. Now that won't work either.Just after I upgraded from Jaunty, I accidentally removed NetwMngr from the top right corner of the screen, but that should not have anything to do with how the program works, right? I now cannot reach NM, if I run it from the terminal, nothing happens visibly.
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Jul 18, 2011
I can connect to the internet with wired connection. The switch for the device is on but this command "sudo lshw -C network" has the following results:
#
[sudo] password for nn:
*-network
description: Network controller
product: BCM4312 802.11a/b/g
[Code]....
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Aug 5, 2010
I have to buy a new modem/router.I'm looking for the Netgear DG834g. Does it works fine with Linux?Do you think it is a good modem/router?
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Jul 22, 2010
Ubuntu and after installing it i can't browse any internet through firefox although ping is working good and downloading plugins to system to run MP3 or videos is also working fine but can't open any website through firefox and i tried the live cd of Ubuntu 10.4 at other PC and internet was working fine and firefox was working fine
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Jun 6, 2011
I'm running Natty and trying to troubleshoot my ethernet problem. An old laptop worked fine (including the ethernet) until a few days ago when we had a lightning strike relatively nearby. It appears power went out briefly or there was a spike (all hardware, except the DSL modem/NIC, had surge protection). The machine works fine now... except the network. I've run lshw -c network and it's showing "network: UNCLAIMED". ifconfig shows only the loopback and no eth0 at all. I've tried: ifup/ifdown, rebooting, live booting Natty off a USB drive, and tried on a network I know works... all to no avail. One interesting bit of info is that I can see a MAC address when I view the 'network connections' via the applet in top panel.
Am I reasonable to conclude the ethernet port got fried by the lightning? Any pearl of wisdom is welcome.
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Aug 7, 2010
when i'm connected with wired (eth0) to my access point vpn connection connect flawless but when connect with wireless (eth2) to the same access point vpn connection failed i don't know whats the deal. i try disable eth0 (ifconfig eth0 down). it's disabled now but vpn connection still didn't work
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Sep 9, 2010
I have installed Ubuntu 9.10 twice on two different laptops that had wireless cards that weren't working until I sudo apt-get update(d) them. After that, the wireless cards seem to miraculously work. But I was able to download them because they had working ethernet cards.
I'm working on a new laptop (Dell Inspiron 1150). I installed Ubuntu 9.10 like normal but I could not get a wired connection. I plugged in directly to my modem and it still cannot connect at all. It says that Auto eth0 is available, but it tries to connect but can't seems to make it. I downgraded to 9.04 to see if there was any changes, and there aren't. The same problem persists.
What's my next step to troubleshoot?
ifconfig:
Code:
lshw -C Network:
Code:
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Nov 10, 2010
I just got an iPhone 4 and cannot get wired usb tethering to work. I had the same problem with my old phone, but I was able to wifi tether it without jailbreaking and don't want to have to jailbreak to tether (I don't mind if it is connected via cable, in fact I prefer it).
In both cases, though gnome network manager connects to the phone, and though the phone shows a current tethering connection, the ubuntu system (10.04 Lucid) is not able to load any web pages, despite showing a wired connection, and despite the fact that connection information on this wired connection seems complete (even with an ip address from the iphone and as it did with my old phone). It seems as if there is likely some simple setting that prevents me from using a usb source, though that is a guess.
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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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Apr 30, 2011
I recently installed ubuntu 11.04 after trying 10.10 for a while and never had to deal with wireless seeing as I always had it hooked up. but Now I am running it on my new laptop which has a Ralink RT5390 802.11b/g/n WiFi Adapter, and I am truly stumped on how to get linux to recognize it. Do I have to install a driver?.. plus, my laptop has the on/off toggle switch assigned to an 'fn' key, so it easily toggles on/off in Windows, but not in ubuntu.
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Dec 21, 2009
I originally posted this in I kind of feel like no one is going to answer... is it because I mentioned Fedora? Since I'm trying out Fedora 12...maybe someone here can help me figure out why I have the problem in Ubuntu, but not Fedora?Here's the situation:I've been having very strange problems on Firefox in Ubuntu 9.10 for a few weeks now.haven't been able to, except for a few minutes....once..... and it never came back. This was when these problems had already been happening and after several tries to reach Fedora's site.
Other problems are just as strange but not so bad or consistent: Pages sometimes seem to randomly not be found or they are found on the wrong server or something. After several minutes, though, they usually go away after refreshing the page.One of the strange examples from the "not found" or error pages I got was when I tried reading Wikipedia.org and it told me it "could not be found on this server," but....the server and URL it listed were from Google.com! The address bar showed that it was trying to find the page on Google! No, I didn't copy and paste or type the address, I was in an already-working Wikipedia page that stopped working and thought it was on Google's servers! Isn't that weird? (I might have screenshots somewhere...)
Anyway, any ideas? I have tried creating new, empty profiles on Firefox, but they still cannot access Fedora's sites. LiveCDs work fine, though. Also, I copied and used a profile from my Laptop to here and it also cannot access it.I even tried System > Administration > Network tools and tried Fedora's site in the Ping tab and it usually works just fine (sometimes it gets nothing, though).Also, I'm not using wireless or dial-up.By the way, I've only been using Linux a couple of months now, so sorry if I don't know stuff
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Mar 18, 2010
I have Ubuntu 9.10 installed on a VM Server 2.02 with a Win7 32 bit host. When the host is wired into my network, the Guest (Ubuntu) has internet conductivity. However when the host is connected via Wireless, the Guest Does not have any internet connectivity. The VM Network connection is set to Bridged.
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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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Aug 9, 2010
I dualboot Win7 and Ubuntu 10.04 for quite a long time now with no problems.... but now wireless works perfect on Win7, but I can't even connect Ubuntu with a direct wired connection.... ubuntu connects to the actual Linksys Wireless router just fine, but just won't take the internet, and I've tried two different Wireless cards.this all started (I dunno if its relevant or not) when I put in a new TV tuner, which I obviously took out right away. But the problem is still there. I don't think its the card, I'm pretty sure its just some kind of setting that I've messed up or something because when I connect to the network its near 100%.
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Nov 1, 2010
I have a wired problem in Ubuntu 10.10, My Ubuntu can connect with Wireless network, however it cannot connect to Wired Connection. I installed dual System, one is Ubuntu 10.10, the other one is Win7. Under Win7, I can both connect to the Internet in Wired or Wireless mode.
The more wired phenomenon is: When I plug in the cable, I can see the icon connected in my network manager. But I cannot visit any URLs. By checking the "ifconfig -a", I can see the IP addr was assigned to my eth0.
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Dec 4, 2010
installed Ubuntu 10.04 on my Dell 1564. My cabled netwo connection is not working.buntu has been dual booted with Windows 7. Internet connection on Windows is working. I have an ADSL modem connected to my laptop via the cable.I have given the details of commands asked to be execute(viewed various posts).
isr@ISR:~$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 12)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 12)
[code]...
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Dec 26, 2010
The wired lan card on hp 530 is not working the wireless works.
Code:
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Jan 7, 2011
Running a wired connection through a Linksys router that suddenly stopped working today.I thought this was a ipv6 issue sinced I enabled some of those settings to share a connection with my PS3.I have since disabled IPv6 in Firefox and through the grub. The RealTek adapter will not even show a connection through the network manager when connected.The onboard adapter will show a connection, give me a ip address and MAC but still will not load the internet. I've tried uninstalling and reinstalling both adapters through the network connections, as well as reinstalling Firefox to no avail.I've also tried using Open DNS servers.I cannot ping through the network tools either. Hard for me to paste a ifconfig since I'm on my laptop.I'm running Ubuntu 10.10 (not dual booting).I did some updates this morning but it worked fine for a little while after that, until I tried to connect to my PS3.
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Sep 1, 2011
I recently installed 11.04 on my PC (was running 9.04), and beforehand "tried it out" and networking was fine. I could access the internet no problem.I then ran the install, and fully formatted my HDD (i have 1 HDD for the OS and another for storage)It crashed halfway thorough, so no problem, i just re-formatted the hardrive and installed.However, It didnt connect to the internet, I literally tried every single forum looking for the solution, including editing the Network interface file.After a bit of diggingfound my user privileges did not allow me to connect to ethernet, and randomly use audio devices.SO, no problem I checked the boxes, but it still wont connect to the ethernet now, and it was fine before, tried re-installing twice with full format, but still doesnt work.
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Jan 10, 2010
I have recently bought a new laptop for this purpose. It is a Toshiba L555D-103. It was pre installed with Windows 7 (64 bit). I have now installed Ubuntu 9.10 (32 bit). It works perfectly when wired. But it does not when I try it wireless. It did work wirelessly with Windows 7, and I have many more both stationary and laptops working through the router, so I do not think the router is the problem.I am guessing that there are no drivers for the wireless to function, but I am not sure. I am guessing that there are no drivers for the Ethernet card ?
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Jan 18, 2010
I recently purchased an Acer Aspire 1410 notebook running Windows 7 home edition. I installed Ubuntu 2.3 and my wireless and network LAN connection is not working. I saw on a link in this forum, someone was having similar problem. However, when i tried the solution that was recommended/suggested to the person, it did not work for me.
what I can do to get my wireless and wired connection to work?
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Feb 8, 2010
We finally got internet in our apartment in China, but my husband was the only one home when the guy came to set it up (on his windows machine).
He connects by plugging in, then clicking a desktop icon labeled "Broadband Connection" where a box pops up with a username, a password box, and some buttons, one of which says "connect".
I am trying to figure out how to set this up on my netbook so that I can use the internet at home too. I have a feeling that even if I had been home when the setup guy came, he wouldn't have had a clue what to do with mine anyway.
On the WinXP machine: Connection Properties state that this is a PPPoE connection, with TCP/IP, QoS, and Deterministic Network Enhancer all checked. Under the security tab, unsecured passwords are allowed.
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May 4, 2010
I installed Ubuntu10.04, It cannot driver Wired network and wireless. Later I installed linuxMint9, wireless is ok, but wired network doesn't work. I am sure the lan cable is ok. It works in Windows.
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Jun 13, 2010
laptop: averatec 6200 series
ethernet driver: SiS 900
wirless lan driver: rt2500
I got 10.04 installed and running pretty well.I cant get the wired ethernet to work but the wireless works. i did the the command line
[Code]...
also, dont know if i matters but ive got 8mbps/1.5mbps cable (motorala surfboard cable modem) and a linksys wrt54g wireless router.
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