Ubuntu Networking :: Lost Both Wired & Wireless Connections ?
Dec 10, 2010
Running Ubuntu 10.10 on a Dell 710m. Fresh install of OS yesterday. Initially I had wired connection but no wireless. So I started chasing threads & trying different downloads & commands [WITHOUT KNOWING essentially what I was doing; throw your rocks at me HERE] & now I have lost the wired connection also.
Also:
[a] If I go into System > Administration > Additional Drivers, I get "No proprietary drivers are in use on this system."
[b] As far as being able to copy a downloaded driver [using a working M$oft machine with net connection] onto an SD card & transferring that driver to the Dell laptop, I have tried formatting 3 different SD cards with the Dell, & each time I come up with various failure errors--& I have no idea why something as simple as formatting an SD card isn't working.
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Jul 8, 2010
New to ubuntu, my wired and wireless connection doesn't work.
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May 29, 2009
My current network setup at home is all wired, and that's worked for me so far. Now I want to set up a wireless connection on my Linux box that I can connect to with both my laptop and my Nintendo DS. I'd like to be able to host a wireless network from the Linux box, connect to it with some other wireless device, and have the wireless device communicate with the router, the internet, and other computers on the wired network. I have the wired network set up (statically configured) as eth0. Other network adapters present on the system are eth1 (not in use) and wlan0, wlan1, and wlan2 (identical cards, remnants from the last time I experimented with wireless).
So I guess my question comes in two parts:
1) How do I set up wlan0 such that it can host? Is Ad-hoc mode okay for this, or do I need to set it up in Master mode?
2) How do I forward connections between the wireless net and the router?
Note that I will be using WEP, as it is all that the NDS supports. I'd like to set up MAC filtering as well, but not until after I get something that works.
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Jul 20, 2011
Just had an issue crop up where connecting wired network seems to stop wireless connections from getting an IP (happens on multiple networks both while the cable is plugged in and once it's been unplugged; also persists across reboots). Machine is a Dell Latitude 2120n with UnionFS running. Connection was working fine prior to the wired connection
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Aug 20, 2011
An half year ago i reinstalled ubuntu 10.04, there both were no wired and no wireless connections.I have found drivers and it's everything ok with wireless, but i can't connect through LAN.
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May 2, 2010
My connection manager shows wired connections and shows wireless as being disabled. here is some terminal info getting wireless going?
Here is a bunch of things I have tried and the results.
nixon@nixon-desktop:~$ sudo ifup wlan0
Ignoring unknown interface wlan0=wlan0.
nixon@nixon-desktop:~$ sudo ifdown wlan0
ifdown: interface wlan0 not configured
[Code].....
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May 31, 2011
I remember that I did configure my desktop PC for wired and wireless connections since openSUSE 11.2, 11.3 and 11.4. Currently I have openSUSE11.4 x86_64 KDE. Today I happen to notice that the icon for NetworkManager in the taskbar has been replaced with a red X. I discovered that Network Manager only shows VPN tab, whereas Wired and Wireless tabs are greyed out. The strange thing is I still have Internet connection with the CAT5 cable being plugged in. I can still configure wired and wireless connections via YAST but I cannot fix Network Manager settings.
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May 17, 2011
I'm trying to bridge connections between a wired and a wireless connection in one of my computers. I was told it was impossible due to low-level limitations in the wireless subsystem, but apparently theres a way if you somehow forward packets from one port to the other. Is there a way I can achieve this?
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May 17, 2010
Fresh install of UbuntuStudio 10.04. This is really bizarre.
I can't seem to connect to the wired connection mainly because there is no connections tab (pic attached).
Here's some printouts:
dmesg:
Code:
lshw -C network:
Code:
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Dec 31, 2009
I have a dell mp1210 xps laptop. I just recently installed installed Ubuntu 9.10 and am very green. With difficulty I managed to install the drivers for the wireless card and now have wireless on the laptop. In order to get the wireless working I had to restart my computer, and once it booted up again the wireless works, but there is no trace of eth0-my wired network device (Broadcom BCM4401-B0) which was working fine before I got the wireless adapter working. Lspci still shows the device as it did when it was functioning, but ifconfig only shows my local loopback and wlan0 (my wireless device). I am not sure how eth0 got deleted, I am wondering if maybe I have to set up some sort of switching between the wired and wireless adapters so they are not both active at the same time. Any suggestions would be really nice, I have been digging through the forums, but I am unsure of what went wrong or what to do about it.
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Jun 22, 2010
I have a problem with my F13 and wired connections on my Acer TravelMate 2410. When I connect the inet cable it doesn't show it as connected. When I type ifconfig, it shows everything as it should. When I tried to bring up eth0 with ifup eth0, it said that the device is not managed by NetworkManager. I tried to restart nm with service network restart, but it gave this error:
Shutting down loopback interface: Error org.freedesktop.NetworkManagerSettings.InvalidConn ection: ifcfg file ;/etc/sysconfig/network-scripts/ifcfg-lo' unknown
The same error came up for eth0 and Wired_connection_1 (the connection I configured from NM )
When I typed nmcli dev list it gave me:
GENERAL.DEVICE: wlan0
GENERAL.TYPE: 802-11-wireless
GENERAL.DRIVER: ath5k
GENERAL.HWADDR: 00:14:A4:4D:B8:FC
GENERAL.STATE: disconnected
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
GENERAL.DEVICE: eth0
GENERAL.TYPE: 802-3-ethernet
GENERAL.DRIVER: 8139too
GENERAL.HWADDR: 00:0a:E4:EB:32:E2
GENERAL.STATE: unavailable
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 10 Mb/s
WIRED-PROPERTIES.CARRIER: off
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Jul 30, 2010
i'm currently travelling in across Japan and facing difficulties connecting to hotel's ethernet connections under ubuntu 10.0.4- when plugging in the ethernet cable nothing happens- rebooting doesn't change anything either.this wasn't a problem before, and i can connect to hotel's ethernet under windows 7 which i'm currently using to post this, but something doesn't work under ubuntu, which is now my main os.
staying at my inlaw's house for a while, i ran pppoeconf to use their optical fibre connection, which worked, but also seems to be the root of the problems i'm now facing to go online via ethernet elsewhere. it seems like pppoeconf disabled something.
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Jan 3, 2011
Lost wired&wireless conections in eeepc 1001px with 10.10 netbook edition, which used to work.
Wireless keeps asking password
Wired is disconnected and doesn't connect
PatchesTheCaveman asked some information, it's attached as a .txt-file, because I don't know how to copy and paste in this Mac I'm using now.
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Jun 27, 2011
So, when I booted up, the wired connection was automatically detected and in use. Whenever I suspend my computer and then resume it later I lose the wired connection. It is detected (seen) by Networkmanager, but I can never connect. I found a way to restore the connection, but it is manual and I was wondering if I could automate this process every time I resume. Details follow:
Laptop: HP dm1z, Natty 64bit. ethernet card:
Code:
#lspci|grep Ethernet
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Likely culprit (according to dmesg)
[Code].....
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Sep 1, 2011
After I updated ubuntu 10.04.3 and restarted my PC, something weired happend and my wired connection was completely lost. I tried different things but it seems that I have lost my ethernet connection. I only have ethernet card and the interface was set to eth0 which is not recognized anymore.
The /etc/network/interfaces includes the following commands, which btw I tried to play with a bit by commenting and uncommenting the lines but was not helpful (but this is the original one):
Also in /etc/udev/rules.d I deleted 70-persistent-cd.rules hoping that it would be automatically regenerated but it did not,
Here are some messages I get :
lspci:
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Jul 30, 2010
I have installed Lucid in a new laptop. Things are running OK except for the following problem:
I connect to the network/Internet using Wired ethernet (TCP/IP) with static IP. Everytime I reboot/restart my network configurations are lost and I have to re-configure. I have googled this problem and have seen a few posts/bugs in launchpad etc. for what appears to be the same issue...but unfortunately I am not getting a clear solution to this problem.
Just for clarity, I am using the following commands to re-configure my network everytime:
Also note that I have already tried editing the /etc/network/interfaces and the /etc/resolv.conf files. But it seems that these are not being picked or are being overridden.
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Sep 23, 2010
I installed Lucid a week ago and have been having a blast with it after a two year break from Ubuntu (been using Mandriva). So the other day I went to hibernate the system and it froze. I naturally did a hard reset and when I log back in, no network connection. That is to say, the system tray says it's connected but there is no LAN light on the router or network card. ifconfig shows it's connected too. When I boot into XP (cringes) it works just fine.
No specifics ATM but the card is a D-Link PCI with a Realtek R8***** chipset
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Nov 1, 2010
I had some problems installing 10.04, which I'm not going into here unless I have to, but it appears to be up and running now except my PC can't access the network, even though it's wired. This is the first time I've tried putting on a new build by myself as my son always used to do it (my PC used to belong to him many years ago, and is old, like me.)
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Apr 18, 2011
After i install it i lost my internet connection . i got a message " Wired Network " " you work offline ". i use cable ADSL ,.... my Pc information HP Pavilion 6700 running with both Window 7 & Ubuntu 10.10 note... my network connection work correctly on W7.
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Mar 28, 2010
A friend who switched ISP's gave me his old Linksys WRT54-G wireless router. I went through the installation procedure and had a wireless connection up and running - smiley face. I had security set up for WPA, and decided to upgrade it to WPA2. Another smiley face. When I went to connect (had already done so successfully), I noticed it referred to my wireless as Linksys - I was expecting to see the SSID. So I started playing around in Network Manager and now I have things all effed up.
Don't know exactly what I did, but now I have no wireless. So I ran a few commands (lshw -C network, iwconfig, ifconfig, and iwlist scan), and looking at the results I see what appear to be inconsistencies in the output. I've posted them below, and make the following observations:
1. Under the lshw it refers to my wireless connection logical name as wmaster0, and has the correct MAC address, etc.
2. Under the iwconfig it says, 'wmaster0 no wireless extensions', but then refers to wlan0 as the wireless connection (although it does not seem to be running).
3. Under ifconfig I see both a wlan0 and a wlan0:avahi. The wlan0 has no IP, the wlan0:avahi does, but it is incorrect.
[Code]...
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Apr 10, 2011
I've been struggling with this a bit now, and I'm not sure what the problem is. I have a laptop with a BCM4401 Ethernet card as well as a BCM4311 Wireless card. The wireless card works great out of the box, I'm able to connect with it perfectly. The problem is the ethernet card. Here is the situation: The NetworkManager menu doesn't list "Wired Networks" at all (ie. it doesn't say "not managed", it just only lists Wireless networks) Going into Network Connections, there is an "Auto eth0" entry ifconfig shows eth0 (which I assume means NetworkManager isn't managing eth0) I have edited /etc/NetworkManager/nm-system-settings.conf to say managed=true I have edited /etc/network/interfaces to remove any mention of eth0 (all that's left is the "lo" lines) So I'm not sure why eth0 is still showing up when I run ifconfig, and why Network Manager is not managing it. Any ideas?
Edit: Not sure what I did but now ifconfig spits out this:
Code:
eth0 Link encap:Ethernet HWaddr 00:1c:26:2c:60:75
inet addr:10.0.1.12 Bcast:10.0.1.255 Mask:255.255.255.0
inet6 addr: fe80::21c:26ff:fe2c:6075/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]...
The MAC address of the "Auto eth0" entry is 00:1C:23:8F:D4:39, the same as the eth1 entry that ifconfig spits out.
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Feb 7, 2010
I have been using Ubuntu for a couple of days now and I am starting to like it alot. I decided to install it on my laptop, but getting it to connect wireless is becoming a problem. I have been searching all day on how to fix this but nothing so far has helped.I had Windows 7 installed before and it connected fine.
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Aug 21, 2010
So it snatched up this old Dell Inspiron 5100 with a WN511B wifi card. When I plug the card into the slot nothing happens and no wireless connections show up. Can someone walk me through on getting the wifi card to work?
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Nov 10, 2010
I have an Acer AspireOne D255 netbook. I just installed Ubuntu Netbook Remix 10.10 and it looks pretty sweet.Right now, I'm on a wired connection. It's not detecting any networks, and I know at least my home wifi should show up (and usually we can get onto our neighbors!)I used to have a different model of an AspireOne (I think it was 531h but I'm not 100% sure) with UNR 10.04, and my network was detected right out of the box.
This reminds me of when I installed the desktop version of 10.04 on my iMac. I couldn't bring the wired connection to the room it was in, and my wifi didn't show up on it. I just gave up because I like my Mac so it wasn't a *huge* deal. but I definitely don't want to use this stupid Windows 7 Starter that comes on this netbook!
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Feb 8, 2011
I went to get online on my laptop this morning, and have no connection. When i click on the icon up top in the task bar, it only shows vpn connection. It does not show ANY wireless connections at all. I checked, and the enable wireless is checked. It just does not pick up any connections.
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May 31, 2011
I own an hp dv9000 laptop, it comes with a Broadcom STA Wireless card... I currently have my laptop connected to the internet through a wired connection, but there is no option at all for wireless.I've already installed the Additional Drivers to install the Broadcom STA Wireless Drivers, and after I reset, there was no difference, no option to choose wireless instead.
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Jul 4, 2011
I'm working right now with ubuntu 11.04 on my asus ul30vt-x1, my wireless n network is working on a linksys e3000 router, my issue is basically with long file transfers. When the issue started i was reaching speeds of 100 Mbps through my wireless network even when I'm connected at 150 Mbps. However when at this speed, I don't know why, the connection is dropped after some minutes or even seconds. I made some testing on windows, I'm reaching 70 Mbps there and no problem at all with dropping the connection.
So my conclusion is that for some reason the linux driver, in my case, is not able to handle such speed of 100 Mbps. I know that a wireless network will have a throughput of aprox 60% the wireless speed. Right now im trying to apply traffic shapping to my transfers so i can get 70 to 80 Mbps, its being working so far.
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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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Apr 1, 2010
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!
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Apr 30, 2010
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.
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