Ubuntu Networking :: WIFI Cannot Be Found?
Jun 7, 2010
I am using Ubuntu Karmic. For the past 6 months I could pick up the WiFi spot in our house, until last weekend when it just disappeared from my network manager. Everyone else in my house can see the WiFi and connect, even the Karmic users - only me has nothing! I can see our neighbors' WiFi though - I could always see it, so I don't think the problem is with my hardware.
I tried to reinstall the connection via network manager - did not work. I reinstalled Karmic - no effect. I tried Lucid - nothing!! It just disappeared! I had connection 3 days ago, but now I don't know what to do.
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Dec 7, 2010
I just installed 10.10 on a Dell Inspiron 1300. The wired connection(eth0) works fine but I get no wireless signal when I unplug and try to connect to my network/internet. It shows that wlan0 does exist but it gets no signal. I've used the rfkill to make sure that it wasn't blocked and everything seems to be ok, except I get no wireless signal.
I uninstalled Network Manager and installed Wcid and it found nothing. I even tried installing several signal scanners I found in the package manager. I've removed, updated and reinstalled the broadcom drivers. I still get nothing. The wireless signal from my router is nonexistent according to Ubuntu.
The wireless works fine when I put my windows XP HD in and it also works fine when I put my Mepix or PCLinux OS HDs in the laptop. So I know that the wireless card is not busted.
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Apr 9, 2010
Intel wifi link 5100 not found on sony vaio backtrack 4 vmware I use vmware to load backtrack I have a sony vaio with 5100 AGN wifi card installed in it. I had tried anything to make my wifi work but always show no interface no wireless. I googled it for help for weeks and all i get was download the iwlwifi things and i already installed in it. i even tried many other thing
/etc/init.d/wicd start
/etc/init.d/networking start
and everytime i type ifconfig it just show eth and lo and no wlan0 in it everytime i type airmon-ng there are no chipset interface and ...........thing (forgot) I could find my wireless card name when i type ilg... something i forgot The problem is,i think my linux doesn't reconize the card even i have installed the driver Anything that i can do to make my linux reconize wifi link 5100 agn wireless card?
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Jan 28, 2010
I cannot connect to the wifi network. My version is 2.6.26-2-686
iwconfig:
lo no wireless extensions.
eth0 same
[code]...
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Jul 3, 2010
My laptop has an internal wireless device and a button to turn it on/off, but since it has bad reception I use an external USB wireless adapter.The problem is that if I turn the internal wireless device off using the button, it also turns the USB wireless adapter off.Is there anyway to use the killswitch (the button) only for the internal wireless device?This only started to happen in Ubuntu 10.04.
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Aug 29, 2009
I have only had a few weeks worth of experience with linux, so I'm probably considered a newbie at this but I felt like giving it a shot. I just configured my new Toshiba Satellite A505-S6969 to jaunty. Most of the transition is going well but I'm stuck with a few issues, one of which is getting my wifi to work. Right now I'm working off of an ethernet cable.spci returns
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port
[code]...
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Mar 6, 2010
Installed ubuntu 9.10 dual boot with win7 yesterday. Everything working but Wifi. Wifi works fine with Win7. No Wifi in Ubuntu. Very confused. I have info from the wifi trouble ticket post.There does not seem to be a driver for this card anywhere.
lawrence@lawrence-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation X58 I/O Hub to ESI Port (rev 13)
00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 13)
[code]....
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Sep 16, 2010
I cant seam to find out how to get my card to work i cant find out how to install the driver or finding the wifi card on the system.
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May 12, 2011
get WIFI working on my Dell D600 with Ubuntu 11.04 freshly installed. I some limited sucched following the this post t=1621331 this got the card working but it was very very slow over 70% packet loss to the WIFIrouter. 1. Machine details Dell Latitude D6002 Wireless Broadband and Chip setlspci -nn | grep Broadcom - 02:03.0 Network controller [0280]: Broadcom Corporation BCM4309 802.11a/b/g [14e4:4324] (rev 02)3. Check interfaces
eth0 Link encap:Ethernet HWaddr 00:0b:db:e0:1c:5b
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[code]...
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Sep 1, 2011
I have a pc which has 2 network cards, 1 wifi and 1 ethernet card.
I'm using wifi card to connect to wifi network (internet) and i'm planing to share this wifi/internet connection via ethernet to wireless router (siemens sx763) so i can have internet on my other devices, e.g. mobile phone, laptop.
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May 4, 2011
I am running (K)Ubuntu Lucid 10.04 64bit on a Dell Latitude E6400, WiFi Card Intel 5100. Never had any problems with networking. Up to about 2 weeks ago. I do realize there have been quite a few posts with this network adaptor, but non really described the problem I have here.
What happens is that suddenly the WiFi LED on the computer stops blinking, the WiFi connection gets disrupted, and the device is not recognized anymore when checking ifconfig. Only cold restarting the machine helps then... it will work for a while (between 1 and 20 minutes) and then crash again.
On Windows 7 the card works perfectly fine. With Ubuntu 11.04 in Live CD mode I have the same effects (connection crashes after a while). Also tried booting an older kernel, no success.
My exact hardware:
Code:
I notived the following problems in /var/log/kern.log
Code:
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Apr 8, 2010
I have 2 connections, wlan and wired, and I'd want to have a few websites (in my browser) to connect through the wireless connection while other go through the wired rj45 connection. s it possible? (without unplugging the rj45 cable...)
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May 13, 2009
the only error message I can find comes from "dmesg|tail"all it shows is
"no IPv6 router"any body know what is going on here or where where to look for more clues the next time I get around public wifi Oh the windoze washers and apple polishers don't seem to have any problems at all
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Feb 28, 2009
I decided to switch from Ubuntu to Fedora Core 10 KDEdual boot installation worked perfectly... all smooth!untill i got to installing things....i wanted to install ndiswrapper, so i manually downloaded it on my second pc and transferred it trought a USB stick to the Fedora PC. When reading the 'installation manual' it clearly uses the "make" command a lot...problem is; bash error: "bash: make: command not found"So i google this and i get some solutions, all involving online repositories...so basically... i need internet to get the MAKE rpm, and i need the MAKE rpm to get the internet working... :')I tried searching online repositories but i haven't got a clue about what i need to download from there (to get the make command, or the "Development Tools") and how to install it on my fedora pc....i need help :P It would be much appreciated if someone could explain me how i could get these important packages up and running on my system with manual downloading and installing.I haven't got a clue how to do this manually... I've been on it for hours allready and I'm getting a bit fed up with it I can't understand why such an important package isn't standard included in the installation.
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Aug 23, 2009
I have an old PowerBook G4 that I would like to use as a 'dummy' computer for learning wireless penetration (WEP/WPA attacks) more effectively. I had been using a wireless router, but I gave it away I can use Mac OS X to share an ethernet connection over wifi, but this is _very_ un-configurable. You get two options only, WEP and a key-length. So, I would like to install someway to make this wireless connection more configurable.
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Nov 9, 2010
I recently installed Ubuntu 10.04 and I would use my tv as desktop, in wireless connection with my notebook. The problem is that on the page url I haven't found the software for Linux.
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Oct 29, 2014
I am having a problem with the driver, I do lspci | grep -i net and this is my driver: Broadcom Corporation BCM4321 802.11a/b/g/n...I have tried this: URL.. (I have debian squeeze) and it created a eth1 interface.I do ip link set eth1 up and after that I do : iwlist scan and it works, but when for example I try iw dev eth1 scan it doesn't work it says nl80211 not found.And when I try to run hostapd (which is my final goal) it also says nl80211 not found.
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Jan 4, 2010
My icon shows that the connection is good using wifi. However, I could not go online. What's wrong?
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Jan 4, 2010
i am always using the latest version of ubuntu,but my main board of my acer5520g broke down under 9.10 last month,the acer company changed my main board and i installed 8.04-i386 LST for safety. but i find the wireless card does not work, i search the google for help,it seems i should install madwifi,but i found no valid download,after a lot of attempts i surrender. SO i put up this question i need a driver for my wireless card (notebook type acer5520g ,wireless card AR 5B91(detected under windows (though i am a big fan of linux and a supporter,i am using two systems and waiting for the 10.04 LST to save me from virus braced windows)
i even can not detect the wireless card under ubuntu 8.04 but it works ok in 9.04 and 9.10 after the installation.
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Jan 15, 2010
I was running windows vista 32 bit (NOW UBUNTU 9.10) on my custom built pc with a TP-LINK TL-WN353GD wireless pci card, before on vista my wifi signal strength would be in the low 70% range with a speed of 54 Mbps from a access point roughly 250 yards away, now with ubuntu 9.10 signal strength in the 15-20% range with a speed of 1 Mbps. My question is, what is the best way to overcome this wifi signal strength and speed problem, it is a noticable performance disadvatange easily seen on a website like ..... where as before videos would play 95% of the time without having to stop and catch up, would a different wireless pci card be a better choice than what I have, or is the problem in the software as in a driver incompatability or lack of correct driver, not sure how to remedy the problem.
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Jan 19, 2010
I have a Compaq Presario with an Atheros AR5002 wireless card. I just installed Karmic and the wifi is the only thing not working. Wireless does work in 9.04. Here's what I get with iwconf
lo no wireless extensions.
eth0 no wireless extensions.
wmaster0 no wireless extensions.
[code].....
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Jan 26, 2010
I run ubuntu over network with pxe boot and I thought that maybe if I connect to my wifi and then disconnect the ethernet, the nfs connection will reconnect over the wifi.. but that didn't work. Anyone know how to make it work? seems like it should be simple.
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Feb 17, 2010
I am new to Ubuntu, but because of my familiarity with Vista's Command Prompt, I was able to adapt easily.But there was a problem. My WiFi card didn't work. As it turned out, I was missing drivers.So I plugged into my dad's Gigabit Ethernet port and got ndiswrapper.That worked well, and my wireless card is working. The problem is that I can access the network in my house, but not the Internet. Everybody else (running Windows) can access the Internet wirelessly. But I have to steal my dad's wired work line. Is there any way to solve this? info about my computer, here it is:
OS: Ubuntu 9.10 Karmic Koala
Computer: (Laptop) Dell Vostro 1000
Wireless card: Dell 1390 wireless
Router: Netgear... some model or another
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Mar 9, 2010
Wifi seems to disconnect fairly requently, sometimes reconnecting automatically and sometimes requiring me to re-enter the wep password.
I would like to make it so it stays connected.
The router is not very close, but I think it's close enough. I even moved it closer. Other devices (such as my N900 mobile phone) hold the connection without issue.
One complication is that there are several devices all with the same SSID, though there should be one which is clearly stonger.
Details below.
1 ) Machine Brand and Model (PC/Laptop):
Code:
2 ) Wireless Brand, Model and Wireless Chipset:
Code:
3 ) check interface:
Code:
4 ) Check for modules:
Code:
5 ) Kernel boot messages
Code:
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Mar 21, 2010
I have a WiFi modem. Its Chinese(non-brand) modem. I can use this modem in windows Xp easily. Just need to install a software given with this modem. but cann't use it in Linux as using ubuntu 9.10 below is my lsusb report.
Quote:
ubuntu@ubuntu:~$ lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
[Code]....
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Mar 23, 2010
WiFi on this laptop worked fine for a few months then went out; after a reinstall of ubuntu (since 9.xx had come out since then anyway) the wireless still refused to even see networks, let alone connect to them; under Wireless Networks in the NM, I just see a greyed out 'disconnected'. This got me to thinking that it may have just been a hardware issue, but I find that hard to believe. Anyway, here's the pertinent information:
Started off with an lshw command just to see if a network adapter is even listed as being connected: `lshw`
Code:
id:
network:1
description: Wireless interface
product: PRO/Wireless 2200BG [Calexico2] Network Connection[code]....
As an addendum : I found this driver project but they claim to require a 2.6.8+ kernel; a quick `uname -r` shows that mine is 2.6.31, and an `apt-cache search linux-image` reveals that to be the highest available from repos; do Debian/Ubuntu distros not use more recent kernels or is this an Ubuntu-specific kernel naming scheme? If so, to what would it be comparable? I'm hesitant to try to install this and change my firmware if it's likely I'll be borking something.
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Mar 27, 2010
I have tried installing the original CD os 8.04 (Dell system restore) again hoping that everything was on there in order to get me connected to wifi again. Connecting to wifi seems to be the main issue that people have trouble with.I feel that I have 3 options now:
1. Sell the laptop (it is a month old!)
2. Pay for support
3. Put windows on it
It is a shame as I liked Ubuntu 9.10
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Apr 19, 2010
For the past almost year, once in a while my wifi won't work.At home,I use an ethernet cable. When I go out, or am out of town, about 1/3 times the wifi won't connect, and won't even find access points. Once this happens, no matter how many times I restart, the wifi won't work. The ONLY way I can get it to work again is if I reboot with the ethernet cord plugged into the laptop and into a router/switch/hub. My neighbor (the one who got me into Ubuntu) is a pretty experienced linux network admin who looked a my laptop and has no idea what is causing this. I've attached my syslog log entry for the last time this happened. Does anyone know why this is? I LOVE ubuntu but I may need to switch back to Windows because I NEED wifi to work.You will see in the logfile I tried connecting to two different APs. The one that always works is the second one, called linksys.
Syslog:
---------------------
Apr 19 12:04:07 ubuntu NetworkManager: <info> Activation (wlan0) starting connection 'Auto sammysosa'
Apr 19 12:04:07 ubuntu NetworkManager: <info> (wlan0): device state change: 3 -> 4 (reason 0)
Apr 19 12:04:07 ubuntu NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Apr 19 12:04:07 ubuntu NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
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Apr 22, 2010
i just installed ubuntu studio but i don't think it includes wifi drivers by default.the laptop i am using has worked well using vanilla ubuntu 9.10 including WiFi.i just need to know what driver packages to install.
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Apr 29, 2010
unable to use DWA-125 Wifi in 10.04 LTS
lo no Wireless extensions
eth0 no Wireless extensions
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