Ubuntu Networking :: Wired Stopped But Wireless OK
Sep 27, 2010
I'm running Lucid 10.04 on a Dell Studio 15. I first noticed it today, but it could have been happening for a couple of days. I get no IP address for my wired connection when running ifconfig. Wireless is connecting perfectly. Normally when I start up both wired and wireless connect and get a local IP address like 192.168.1.11*. Additionally, the router has a slowly blinking light corresponding to this connection, which is different from other good connections like my printer which has a solid light on. Here is output from running route -n:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
I'm not a total newbie, but run into some strange problems with my installation of Lucid.Everything was working fine yesterday. I shut down the laptop and powered it up this morning and had problems with network. I have two NICs (wired and wireless). Both are set to pick up IP settings from DHCP and both do, however when using wired network I can't communicate with outside world - can't even ping the default gateway (but pinging 127.0.0.1 or IP address of the NIC no problem, so stack should be OK).When on the wireless network everything works fine (otherwise I would struggle to write this post ).What is very weird though is that I have a VMWare Player installed and using Windows VM on wired network works just great!
I noticed that when you're persistent it happens that you can ping but huge chunks of traffic are lost (e.g. packet 1-10 would pass, 11-40 would be lost, 41-59 would pass and so on).I restarted Ubuntu, tried shutting down interfaces, disabling networking and nothing helped. I don't recall performing any changes (at least that I would be aware of).Can anyone suggest something?BTW. This is not DNS issue as both IP addresses and FQDNs do not work. When I refer to using a given network (wired or wireless) the other one is down with ifconfig command...
I'm running 10.10 on a brand new computer, and up until this afternoon the wired connection was working fine. All of a sudden it stopped working (and doesn't work in Windows either).I ran sudo dhclient and it gave me:
DHCPDISCOVER on eht- to 255.255.255.255 port 67 interval 3 (7, 9, 10, 18, 13) No DHCPOFFERS RECEIVED No working leases in persistent database sleeping
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
I have been running Natty on my MacBook Pro for a while now and then suddenly while just using it normally (not installing etc), my skype crashed and would crash again on restart of the program. Now this could be a red herring, but though I'd include as much info as pos.
I installed all the updates the system told me to, to see if this would help and restarted.
On restart, the wired network would not connect. I get the following errors in my log:
May 26 12:46:40 richard-MacBookPro NetworkManager: <info> Saved default wired connection 'Auto eth0' to persistent storage May 26 12:46:41 richard-MacBookPro NetworkManager: keyfile: updating /etc/NetworkManager/system-connections/Auto eth0 May 26 12:46:41 richard-MacBookPro NetworkManager: Ifupdown: get unmanaged devices count: 0
ipconfig does not exist on my computer, otherwise I would echo this for you also.
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.
My ubuntu karma desktop is plugged into a wired connection that goes through a router and into my cable modem.Everything was working fine like it had been foseveral months yesterday morningSomething happened by the end of the day that has screwed up my wired networking. I plugged my laptop into the same cable thats plugged into my ubuntu, and the cat5 cable is live. Also when I plug said cable into the ubuntu box, the ethernet lights come on, or atleast a solid green one. Meanwhile the network connections Icon continues to have a red X and a tooltip saying "No network connection".
Under network settings, there is only one wired network "Auto eth0", but it says "last used: never" which is strange since I've been using this for months. When I click edit the main settings are MTU automatic, ipv4 automatic DHCP, and ipv6 ignore.hat could the problem be? By chance did a karma update get released that broke the networking
It has been a while and many ubuntu updates since i connected the windows laptop, it used to work fine but this ubuntu machine keeps telling me the cable is unplugged. When i boot into windows XP the network works fine and the laptop can connect through the network to use the internet. I have a very simple home network ... 3 pc into one switch. I am by no stretch of the imagination good with networking
My desktop computer has another Linux distro on it. Wired networking was working fine. I wanted to try Ubuntu 10.10 so I installed it on a spare USB HDD. After install, networking still worked on both distros.
I moved the USB HDD to my win7 laptop and Ubuntu 10.10 booted fine. Once booted, Ubuntu asked to configure wireless on the laptop. I tried to do this but it did not work.
Therefore, I moved the USB HHD back to the desktop and booted. Now the wired network does not work from either Ubuntu or other distro (fedora 14). And to top it all off, the wired network will not work even from the Ubuntu live CD.
I have checked all connections, switches & cat5 cables to my desktop computer. I can still access the network and internet from my laptop (in win7) so I do not believe it is an infrastructure issue. I can confirm that everything works from the cable out of the back of the desktop through to the internet.
Here is the output from the usual troubleshooting commands in Ubuntu 10.10 code...
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.
in short : installed 9.10 on a dell inspiron 600m which has a broadcom bcm4401 ethernet and an intel PRO/Wireless LAN 2100 3B mini PCI. At this point, i'm not too picky about which one works (meaning neither of them currently work). nm-tool seems to pick up on both : the broadcom (eth0) is using the b44 driver, State is unavailable; the intel (eth1) is using the ipw2100 driver, it's State is disconnected.
i have encryption turned off, and the wireless sees a number of AP's (including mine).
i'm jumping off the good ship m$ and determined to make this work!
I just did a fresh install of ubuntu studio 10.04 and I can not connect to either a wired or wireless network. The In Network Tools the IPv4 IP address is 127.0.0.1. It is plugged into a network giving out DHCP IP's. Both wired and wireless were working on ubuntu 9. I have tried to bring eth0 up in the terminal but it did not give an error or anything. It it running on a Dell Latitude D820 laptop.
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
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%.
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.
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.
I have recently developed a problem with my computer connecting to the internet which has totally stumped me and is currently forcing my to use windows much to my frustration. I am using ubuntu 10.04 on a Toshiba Satellite laptop. My wireless and wired network connections will not connect. They are all present in the menu and i can click on them but the connection tries to connect and then just times out and fails to connect. Everything still works fine in windows Vista. The more confusing thing is i tried some live disks to see if they would work but they all did exactly the same thing including a live disk of ubuntu 9.10 which used to work perfectly and live disks of openSUSE 11.4 and Mint 10. I struggling to tell if this could be a hardware problem or not. The fact that the live disks wouldn't work suggests a hardware problem but the fact that Vista still works totally throws that argument. I have looked all over these forums and elsewhere and have found some similar ish problems but non seem to have the severity of this one as all of those seem to be wireless only problems. The only thing that i was doing at the time this started was i had just set up a new secondary user account but i suspect that may be coincidental.
I am trying to share my internet access using the following setup.
A Linksys WRT54G v5 router that is connected to my cable modem in my basement. I want the signal to be picked up by my Hawking HWABN1 and sent through a Linksys BEFSR41 to my Ubuntu desktop running 9.04.
I'm pretty sure the Hawking is receiving the signal because when I check the devices in the wireless router setting the IP shows up. I can't seem to get anything whether it is hooked up to the BEFSR41 or straight to the desktop and Ubuntu tells me I'm offline and I'm not getting an IP.
I have a WinXP laptop that I have used to run the Hawking setup and it is supposed to be accessible through a web based interface similar to the routers.
I'm trying to set up a wired/wireless linux router. it wirelessly connects to a network, then is wired to the internet port on my netgear wgr614.
eth0 (wireless) is dhcp
Internet port is static
And local network
I turned forwarding on, set the iptables for masquerade and nat, but i'm not really sure what i'm doing wrong. any pc connected to the wrg614 can see the pc thats supposed to be forwarding packets but can't see any further(the other router at 192.168.1.1 or the internet).
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 ?
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?
I recently got a cable modem from Comcast, and connected a Belkin F5D7230-4 wireless router to it, then connected my computer and an Xbox 360 to the router with ethernet cables.
My computer dual-boots Ubuntu 9.10 and Windows 7. In either operating system, the wireless connection is flawless. In Windows, so is the wired connection. But in Ubuntu, there's a lot of trouble with the wired connection -- specifically, while I can connect to the router and to the Internet, and while I can use ping, dig, traceroute, etc., to verify connections to remote hosts, Web browsing, or anything else that uses http, works only for a few Websites, and then only erratically.
I don't believe it is a DNS problem -- testing with ping, dig, etc., demonstrates that, and I have also tried using alternate nameservers. I also don't believe that it is an issue with IPv6, as I've tried the fixes usually suggested, including editing the grub configuration to disable IPv6 support in the kernel and verifying that IPv6 was inactive. I've also tried using local dns servers such as pdns-recursor. None of these things seemed to help.
Also, perhaps unrelated, but disturbing: my computer has locked up a few times while testing the wired connection, and I had to use a hard reset to restart the computer.
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.
I just installed (dual-boot with Vista) Ubuntu 9.10 in my Toshiba Satellite M300. The problem is that (when using Ubuntu 9.10), its network is dead, both wireless and wired. The LEDs of the LAN port don't even blink. My wifi is not also detected. Both of my wifi device and LAN port are functional when using Vista.
The reason for this is I can connect to the internet on my ps3 through my laptop, and I can stream from my laptop to ps3 through wired connection. This works fine in windows 7 all I had to do was right click bridge connections. As I dual boot I don't want to have to make any changes to the settings on the ps3.
My interfaces are: eth0 - wired wlan0 - wireless
I installed bridge-utils and created a bridge and added both eth0 and wlan0 to it. However I could not get it to work. I have also tried internet sharing through network manager and firestarter.
I have just installed Ubuntu 10.04 on an HP Pavilion dv6000 series laptop, dual-boot. Everything is working except the networking. It can see wireless networks, and when I type in the password for my wireless network, it tries to connect, then asks for the password again. When I plug in the Ethernet cable, again it tries to connect, but after a few seconds gives up and tells me I am now offline.