Ubuntu Networking :: Wlan Has Stopped Working?
Jun 30, 2010
I have a Thinkpad T400 notebook that dual boots windows 7 and Ubuntu 9.04. My wireless has worked both in windows and ubuntu for the past several months. However 2 days ago, the wireless in ubuntu stopped working. I think this may be a result of trying to set up a static eth0 connection between my laptop and an embedded board, but I dont see how messing with eth0 would stop the wlan from working.
Symptoms: When I left click on the network connections icon in the tray, all it lists under "Wireless networks" is "device not ready". Needless to say, there are no networks available to connect to. Also the wireless is working fine under windows.
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Aug 1, 2009
I have a Dell XPS M1330. I installed Fedora 10 on a separate partition and left Vista on the first. It was working just fine and for some reason all of the sudden it is not recognizing the Wireless controller. Vista is still working fine although I did get a couple of "WLAN controller has stopped working" errors. I suspect I may have a physical problem with the controller but I'm confused as to why Vista is still using it but Linux is not. The actual physicall "WIFI" light on the laptop does not even illuminate when I boot Linux. No wireless networks appear in the network list under Linux. Particularly since it WAS working fine for months...
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Sep 9, 2010
I'm using Ubuntu 9.10 on a Lenovo ThinkPad T61 using an Intel PRO/Wireless 3945ABG. My laptop's ability to connect to a wireless network stopped last night, and I'm not sure why. It's definitely something on my end, as my roommate can connect to the internet on a Windows box. I can wire in without a problem, but that's a pain and my Ethernet cable got lost in the shuffle when I moved back to school. I've been able to get into this network before and nothing about it has changed. I've been able to hibernate and restart and such and nothing has ever needed to be reset.
The router's a D-Link WBR-2310. Wicd and Network Manager see the network (I'm back to using wicd) , but wicd appears to get stuck at "Obtaining IP address..." and says "Unable to connect: Cannot obtain IP address". I know my password is correct (I set up the router and I'm the CS undergrad in the apartment so I manage it), lspci sees the wireless card, ifconfig and iwconfig return information about the interface, dmesg|grep wlan0 doesn't seem to have anything terribly out of the ordinary, but here's that output:
Code:
allyanncah@taliesin:~% dmesg | grep wlan0
[ 23.514202] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 36.609016] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 38.756143] wlan0: direct probe to AP 00:24:01:cb:4e:7e (try 1)
[ 38.758791] wlan0: direct probe responded
[ 38.758796] wlan0: authenticate with AP 00:24:01:cb:4e:7e (try 1)
[ 38.760587] wlan0: authenticated
[ 38.760609] wlan0: associate with AP 00:24:01:cb:4e:7e (try 1)
[ 38.763318] wlan0: RX AssocResp from 00:24:01:cb:4e:7e (capab=0x431 status=0 aid=1)
[ 38.763322] wlan0: associated
[ 38.765502] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready .....
I've tried:
- reinstalling wicd
- uninstalling wicd and installing network-manager
- restarting
- shutting down and booting back up
- restarting the router
- sudo /etc/init.d/networking restart
- taking the interface down and back up with ifconfig
I haven't changed anything recently in regards to my wireless card, and all the fixes I've tried are things I've done before without an issue. The only thing I'm wondering about is if doing a hard reset might have broken something (I know this is a cardinal sin, but there's a whole 'nother problem I haven't been able to fix with the OS hanging every once in a while over a VPN daemon when it tries to shut down or restart -- I've left it for hours to see if it actually gets anywhere and no luck, won't do a soft reset). I'm nervous about reinstalling the driver just because I've never had to do it and drivers are a finicky business. I imagine there's a config error somewhere?
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Feb 9, 2009
I have an HP Pavilion notebook with a Broadcom WLANcard that had been working very nicely in Fedora Core 10 until this evening, when I took my notebook to a conference room where there was no internet access. (I tried to connect to wireless networks, but there were none in the area, as I discovered.) am now unable to connect to my local (home) wireless network as the device is now non-existent . Can someone please walk me through the steps to fix this or re-install it (I have tried reinstalling broadcom-wl, but that didn't help). My lspci listing is reproduced below:
Code:
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
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Dec 25, 2010
I'm a new user of Ubuntu and I think I need some help but let me mention before that I got this up working on a Debian system.My current kernel version is $ uname -r 2.6.32-27-generic.The problem is that my wlan card is not working any more such that my system freezes every time I enable networking with the hardware switch on my laptop.Therefore I bought a USB - WLAN stick and try to get this working.
Network Manager has the option "enable wireless" greyed out if I disable the hardware switch.If I enable the hardware switch and remove the module of my wlan CARD before (modprobe -r iwl3945) it says "wireless disconnected" for all networks.
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Feb 17, 2009
I have hp dv6291 laptop with Centos 5.2 os the NIC & WLAN not working ?
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Jan 12, 2010
I have just installed Ubuntu 9.10 on an Acer TravelMate 290E. I've got internet connection through the Ehternet Cable, but when I plug in the D-Link WLAN USB device, although the system recognises it, it is disconnected. How can I connect the WLAN USB device adn get it to work?
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May 23, 2010
I have a desktop and laptop both running ubuntu 10.04. I have them going through a wireless router, the desktop is wired of coarse. I installed just about all the samba packages in synaptic that have the little ubuntu symbol next to them on both desktop and laptop except the Kde and document packages. I installed the two necessary packages to enable personal file sharing to work. But I can't seem to access files back and forth from these computers.
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Apr 19, 2011
I have recently bought a new laptop (medion akoya p761 and I can't get the wireless working... With windows 7 it's working.
I followed the sticky guide but still no success....
The problem is in the first place that it doesn't list my wlan : lspci -nn
Code:
:~$ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 18)
00:01.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express x16 Root Port [8086:0045] (rev 18)
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May 2, 2011
Installed F14 on my daughters HP Pavilion a131On. I rebooted multiple times. Do I need to activate something? I'm new to all of this but read through many threads to do as much as I could myself. I used the GUI to load the rt3070 drivers rather than rpm. The GUI is easier I think and should be equivalent. Please let me know what else I need to do. Fedora has been great on my Lenovo but this usb wlan stuff has been a pain.
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Jun 24, 2011
I'm running Fedora 15 KDE on a Sony Vaio VPCS13V9E. No problems in connecting to the wlan. Today I upgraded the system. There was an upgrade for Network Manager. After the upgrade the system is not able to connect to the modem - router (Linksys WAG320N) any more. Network manager keeps on crashing and sends messages like "network disabled" or "connection failed". Kde demon is reporting errors too. I guess the new version of Network Manager is bugged, because before the upgrade it did work well ... (unbelievable!).
lspci: 02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35).
Subsystem: Intel Corporation Centrino Advanced-N 6200 2x2 AGN
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at dd100000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlagn
Kernel modules: iwlagn
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Jul 13, 2011
When originally installing 11.04 I had problems getting my Ralink 5390 wireless card to work.
Today my computer froze completely and I had to turn it off via the power switch. When I turned it back on, wireless was no longer recognized! My iPod can connect to the network just fine, so it must be an Ubuntu problem. There are no problems with my ethernet connection either.
I researched this and found several threads about blocking and unblocking wireless devices using the rfkill command. Well, unfortunately for me the rfkill command doesn't work. When I type sudo rfkill list or sudo rfkill unblock all, nothing happens; it just returns me to my bash prompt. I even tried uninstalling and reinstalling rfkill...nothing.
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Nov 21, 2010
My problem with UBUNTU is that I can not use acer-wmi because I get this ERROR :
Code:
... so I can not use the acer_wmi . But this is not my only Problem :
It is most likely caused of the missing " Firmware " / Driver for my WLAN Card ( Internal ) . Currently I use Ubuntu 10.10 but I tested 10.04 too before 10.10 and it found my Card but not the Button .
So I want to know if there is any solution for my problem .
If it is important :
I use an Acer eMachines e525 with Windows Vista Home Basic ( Pimped up ) and Wubi . I saw a lot of people with simmilar problems they have it as only boot option .
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Jan 19, 2011
I updated Ubuntu to 10.04 after which I noticed the wireless indicator lights on my HP laptop were continually flashing between blue and orange and network performance seemed slow. I did some searching and found and implemented the following change to stop the flashing:
gksudo gedit /etc/modprobe.d/wlan.conf
Copy and paste the below line:
options iwlcore led_mode=1
Since making this change the wireless connection is shut off and I can;t get it to work at all. I first tried simply to remove the change to get back wher I was, but I can;t do that. Can sopmebopdy toell me at least how to get rid of this wlan,conf file ( it was created by the above command) so I can start over?
Coincidentally since making this change my Windows Vista OS fails to start because of errors attributed to a software or hardware change, of which there were none other than the Ubuntu wlan.conf change. . It may be unrelated but I am suspicious of the coincidence. I am running Vista and Ubuntu in a dual boot configuration and all ha run very well until I did the Ubuntu wlan.conf change.
I am now attempting a complete recovery of my Vista system, since it seems irreparably broken. Again coincidence or not?
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Jun 22, 2011
(For the record, I have already read the other threads. Either they don't work for me or are too difficult.) My laptop is an Acer TravelMate 250. I have installed Ubuntu 10.10 (2.6.35-28 generic i686) after erasing Windows 7. At first, the usb wireless adapter worked. Then, I restarted the PC because of some updates and it didn't work anymore. In "edit connections" I find "Auto SpeedTouch8350DB" which is the wireless connection (on my sis's computer it works). When it tries to connect, I'm asked the password but it doesn't work.
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Sep 8, 2010
I have a Dell Inspiron 1525 laptop using Dell Wireless 1395 WLAN Mini-card (This is what Windows Vista says I have). I have installed Ubuntu as dual boot with existing Windows Vista. Wireless is not working in Ubuntu but working flawlessly in Windows.
Here is the output using CODE: lspci.
hai@ubuntu:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
02:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
02:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
02:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
02:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 12)
0b:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
hai@ubuntu:~$
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May 28, 2011
I patched my wireless driver in order to support packet injection. Using this tutorial:
- Install the Firmware:
Code:
- Create new directory:
Code:
- Now disconnect Internet and unload all your driver (use rmmod command)
- Move/copy the Compat-Wireless patched in /usr/src/drivers directory and unpack the drivers:
Code:
Blacklist the wl driver: (STA driver)
Code:
Currently I'm running Ubuntu 10.10, Kernel 2.5.35-29-generic. I have a Broadcom 4318 for my WLAN and a Broadcom 4401-B0 for my ethernet. I followed the tutorial and I managed to get packet injection working on my WLAN; however, my ethernet connection isn't working. I tried sudo modeprobe b44, but I get the following message:
FATAL: Error inserting b44 (/lib/modules/2.6.35-29-generic/kernel/drivers/net/b44.ko): Invalid argument
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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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Jan 22, 2010
I successfully set-up an FTP server, that worked great and perfectly, but after restarting the computer, it has stopped working.None of my router's settings have changed. I restarted the vsftpd process.
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Feb 25, 2010
pulled the wireless USB adapter out of the back of my laptop when I was using it. I plugged it back in and it can see my wireless network, but it can't connect. Everytime it tries, it just shows the connecting icon on the top bar for a few minutes and then says that the network has been disconnected.
I've tried uninstalling and reinstalling the USB adaptor, but nothing I've done seems able to fix the issue. Anyone know how to fix this?
The USB adaptor I'm using is a Trendnet TEW-424UB
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Apr 29, 2010
I have had ubuntu about a month now and everything has worked great up until now, I was surfing the web and all the sudden I lost connection. I tried to connect to the signal but got nothing so I did a reboot. After the reboot my wireless signal didn't show up. i right clicked the connection icon on the top taskbar and the enable wireless is blacked out to where i cant click it.
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May 20, 2010
i installed and ran System Profiler & Benchmark ran a test. then i rebooted and turned off ACPI/PowerNow. at this point i realized my network card had gone down so i went back an turned the ACPI on. nothing changed.
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Aug 2, 2010
Last night I was trying to get my printer working, and when I rebooted, I lost networking and sound.I am currently booting on a live CD, and sound and networking are fine-- so it can't be a hardware issue (obviously). I must have inadvertently broken something, but I can't figure it out.I have tried restarting networking, but it doesn't respond-- it says stop/waiting or something like that.I can't access the sound preferences-- it says waiting for sound to respond (or something like that).
When I reboot, sometimes I see a terminal window with the same line scrolling very, very quickly-- something about waiting for USB. Additionally, the system is very slow to respond-- clicking a menu item can take a long time for it to appear, etc.What could have occurred, and how might I troubleshoot it?
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Aug 4, 2010
Just recently the wireless stopped working on Ubuntu 10.04. The machine is AcerOne AOA-150. I did notice recently the wireless would stop working, and I would need to either 1) reboot 2) switch the wireless off by moving the switch from left to right in front of the laptop.
However, this time nothing is working. I've provided some detail and if more information is needed, let me know.
LSPCI:
00:00.0 Host bridge: Intel Corporation Mobile 945GME Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)
[Code]....
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Apr 30, 2011
On 10.10 my wireless card worked out of the box. Now on 11.04 it stopped working after the update!. My card is Atheros AR5001.
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Jun 17, 2011
Been searching for hours and looked at several other threads but still can't figure this out. We have 4 folders being shared from a Ubuntu 10.4.2 LTS Server using Samba. A couple days ago two computers in the office lost access to these shares. The other computers in the office are fine. So far as I know nothing has changed on the server. I can putty into the server still but I can't map a drive or open a window through run (\server_nameetc).
I've also tried disabled iptables on the server and windows firewall on the the windows xp machines. Still no luck. What am I doing wrong? Like I said, so far as I know there have been no changes to the server whatsoever. One day it was working and the next it just stops.
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Oct 13, 2010
I've started to set up a server at my house, where I eventually want to run it headless, and I can just VNC in from my other Desktop. I installed Ubuntu 10.10, setup remote desktop on the server, and from there was able to do any work remotely. That was nice. I turn the computer off at night, and the next day when I was going to work on it, I cannot VNC in anymore. One day passed, and now every time I try to use VNC it comes up with "Failed to connect to server" I also set a static IP address on the server too, so I know the address isn't changing every so often.
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Nov 11, 2010
I switched my FC11 system off yesterday. Turning it on this morning, NO domain names can be resolved anymore.I can ping IP adresses directly, and even get to them in FireFox if I type the IP address. However, typing any domain name at all fails. I cannot ping or SSH to any domain name, but as soon as I enter an IP, it works. I can ping the DNS server by IP that is set in my /etc/resolv.confI checked on an XP system using the same DNS server set in /etc/resolv.conf (which can also be pinged on IP from my FC11 system), on the same connection from the same ISP, and it works.E. g. without touching anything at all (and all updates are turned off) my FC11 system has stopped resolving domain names.I'm running 32bit FC11. The system has been working fine for more than 2 years.So it has spontaneously stopped doing DNS when I enter a domain name. Where can I start looking?
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Feb 21, 2010
I'm currently running Ubuntu 9.10.After I updated to 9.10, my wireless connection stoppped working. I can access the network but I get no response or what so ever in my browser.Downloading language support or any software doesn't work either.Haven't changed anything to my settings and checked the router. Router works just fine.
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May 18, 2010
After upgrading to the latest Ubuntu, my wireless card stopped working. I keep on pressing the button but the little orange light wont come on...I have an aspire 5517 with "Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)" I have tried drpjkurian's tutorial for madwifi with no success . (http://ubuntuforums.org/showthread.php?t=1309072
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