Ubuntu Networking :: Wireless Suddenly Fails / Networks Still Visible
May 19, 2011
I'm having a problem with my wireless, and after searching the forums for a couple of hours, I suspect it's time to speak up.This morning, wireless was up and working fine on several networks. My laptop froze around noon, and I was forced to do a hard reboot. After restarting, the Network Manager will not connect to any wireless networks, which are visible. Wired connections work fine. I've tried multiple networks, and although I can see them, I cannot connect.
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Jun 30, 2010
I have an Atheros AR242x card. It can see my wireless network (WPA2). When i attempt to connect to the network it asks for the WPA2 passphrase. After entering the password it begins connecting but hangs up for about 3 minutes before saying wireless disconnected. The wireless worked for one day on a fresh install (Ubuntu 10.04)and then started doing this.
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Jun 1, 2011
After upgrading from 10.10 to 11.04 and running an update ubuntu can't connect to any wifi networks, although it can see them perfectly (and potentially unrelated, the windows partition is having major dns issues with the wifi too).
I've looked around and can't find an obvious fix, just a bunch of posts from people with the same problem that wasn't solved. I got frustrated and was about to install 10.10 again but I noticed I couldn't connect to the wifi on the liveCD either. I then tried the 10.04 liveCD, and the internet worked aswell as when I installed it. However before when I upgraded from 10.04 to 10.10 I had no problems with the wifi, so it leads me to suspect that there was something installed/some setting in 10.04 that is missing from the latter version.
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Dec 24, 2009
Since my update to OpenSuse 11.2 knetworkmanager refuses to connect to WEP enabled networks (worked fine with knetworkmanager 11.1). I am sure that I use the correct password and I tried on 3 different networks. The manager is connecting to open networks and WAP protected networks without problems. I saw on other forums that there were similar problems with previous versions of networkmanager. But I could not find a solution for my problem.
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Jan 7, 2010
I could use Wireless network. I could see several different networks in my range. Then suddenly the network stoppedworking, and I can no longer see any networks under "Wireless networks".The Wired networks works fine.I tried upgrading ubuntu, but nothing changed. Just to confirm, I rebooted the computer in Windows Vista (Dual boot) andconfirmed that Wireless worked fine there. No hardware problem then.The suggestions I have found on this and other forums suggest looking at the output from iwconfig and ifconfig. But since I'm a n00b at Ubuntu I don't know what to make of it.
This is the output:
emil@emils:~$ iwconfig
lo no wireless extensions.
[code]...
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May 23, 2011
In all but one place my HP Pavilion laptop running Fedora 14 will work flawlessly to use the Internet for e-mail, ftp, http, etc. In one network there is a wireless router - Cisco/Linksys E3000 - that allows every computer to use the Internet normally for wireless or for wired connections, every computer but mine. If I use Google's Chrome I can access the Internet. I can ping any web site too, but the moment I try to access anything with Firefox 3.6.17 there is a long delay and the standard error page appears. Weather or not I use a wired connection is apparently irrelevant.The Windows 7 computers in the same network are free of this curious problem. Strangely I have noted a problem like this, possibly the same problem, with another network at a coffee shop and they both share the misfortune of using AT&T, which is proud to not support Linux ... for customers of course (it's good enough for themselves I'm sure)
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Jan 11, 2010
I've been running Karmic since it was officially released on my Dell Studio 17 (specs are in my signature) with a Broadcom wireless half mini wireless card.hen I installed Karmic, it gave me the option to install proprietary drivers for my video card as well as 2 Broadcom drivers, STA and one of the BC43 drivers. I installed all of these, and the only problems I had were with the audio. I spent a few days troubleshooting the audio and finally got PulseAudio set up for my card.
Almost 3 months later, I was making use of my wireless network at home, as I had done plenty of times over the previous 3 months, when I closed the lid (thus putting the computer into sleep mode) and took it to the hospital to stay with my fiancé¥ after her surgery. When I got to the hospital, I couldn't get their network to show up. Network Manager didn't even recognize the network. We had also brought my fianc饧s laptop (same machine with a slightly less powerful CPU and only 4 GB of RAM). She is running Windows 7, which detected the hospital's network with no problems.After trying to ad-hoc the hospital network with no success, I finally just gave up and played Sudoku and toyed with some graphics stuff in GIMP until we came home. Upon returning home, however, I was shocked that my card didn't even detect our home network.
I have been unsuccessful for the past 3 days in getting Network Manager to identify our wireless network. The wired network connects without issue and I am able to make use of a USB Belkin adapter, which identifies all 7 of the various wireless networks in my neighborhood, including our home network.While I would be able to simply carry my Belkin adapter with me in order to make use of wireless networks, I would really like to solve this problem with my Broadcom adapter. I've gone through the Ubuntu Wireless Network Troubleshooting guide, but I still can't get it to workOutput of lshw -C network:
Code:
*-network
description: Wireless interface
[code]...
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Jun 11, 2011
For some reason, ubuntu cannot find local wireless networks. In fact, the Broadcom wireless card Ralink RT5390 802.11b/g/n seems to be incompatible with ubuntu. I've tried numerous 'solutions' on the Internet, but none of them seem to work on my computer. Tutorials I've visited have recommended downloading the b43 drivers from the Synaptic package manager and also the bcmwl-kernal-source package. Nevertheless, the wireless never turns on and Additional Drivers never shows anything at all. After several exasperating hours of trying to get my wireless running I've decided to turn to the forum for help. I'm sure there's probably more information I should supply, but I'm honestly not sure what that would be.
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Jun 27, 2010
When I install lucid my wireless worked out of box, but for some reason it has stopped working.wireless Network is gray,by that I mean not active.
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Jul 23, 2010
I have a weird problem that I can't find the answer for in the forums or docs. I can see the wireless network in Network Manager, but it is grayed-out and inaccessible. Other wireless networks are white and I can click on them and connect to them (or could if I knew the password).
My work computer, an IBM ThinkPad T43 running Win 7, connects.
My personal computer, a Dell Latitude C640 running Ubuntu 10.04, sees the network as grayed-out and therefore I have no option to connect to it.
I have tried the following:Checked for hardware drivers - the system says "No proprietary drivers are in use on this system"
Verified that the network security settings are the same on both my work and personal computers: WPA2-Personal
Why can I see the network but it is disabled/grayed-out?
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Apr 21, 2011
I've been running Ubuntu 10.10 (Maverick) x64 quite happily on my Dell e6500 for the past few months until today when I woke the computer up from sleep mode and could not use the wireless. The network-manager applet simply has 'Wireless' greyed out. I tried rebooting, thinking it was an issue with the wireless card not re-powering on properly after sleep, but to no avail. how to begin here?
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Feb 14, 2010
I have been having trouble getting my network card to access networks. I currently am using a wired connection. A while ago when I first installed Linux on this same computer, I got it working by installing the driver. But since I reinstalled Linux, I tried the process again with no success. Can anyone give me explicit instructions on installing the network card driver so I can use it on Linux.
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Mar 23, 2010
I have Ubuntu 9.10 on VirtualBox.How can i view my wireless networks via 2 ways ?
1)via Terminal(Shell)
2)via a suitable apps in GUI.
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Apr 5, 2010
I'm dual-booting Ubuntu 9.10 (upgraded from 9.04) and Windows 7 on my Dell Inspiron 1525 laptop.Ubuntu doesn't recognize any wireless network (both in 9.04 and 9.10); my Windows OS works perfectly well with wireless, as does my wired Internet connection with Ubuntu and Windows.I've had this problem on previous installations of Ubuntu (I've removed and re-installed it several times) but I can't locate the solution anywhere. I've tried numerous fixes that I've found online, but none of them have worked.System>Administration>Hardware Drivers tells me that the Broadcom STA Wireless driver is activated and currently in use
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May 4, 2010
I am using a Toshiba Laptop model P205D-S7802 with an atheros wireless card. Since I upgraded to 10.04 I am unable to connect to the internet unless I use an ethernet cable. I have been surfing the threads for a fix and have tried what has been posted but to no avail.
HTML Code:
eth0 Link encap:Ethernet HWaddr 00:1b:38:b6:cb:98
inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:38ff:feb6:cb98/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]...
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Sep 5, 2010
I'm running Ubuntu 10.04 64bit on a Thinkpad T61, and I keep running into some issues with the wireless networks. For a while, the connection works fine (sometimes several hours, sometimes 15 minutes or so--there doesn't appear to be an event associated with it). Eventually, though, the connection disappears; first, though the widgets say I'm connected, nothing will go through, and soon after, it realizes I'm not connected and, moreover, it can't find a single wireless network, despite the fact that it was just fine a couple of minutes beforehand (and other devices still have access to the WLAN, so I know that the router hasn't crapped out). I've tried using wicd, but the same thing happens.
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Oct 10, 2010
I am quite new to Ubuntu, so please give me easy to follow steps.So, I have just installed Ubuntu 10.10 x64, but cant get my wireless to work. It detects my networks and tries to connect to them - infinitely, whithout success.I have tried it on an unprotected and on a WPA2-personal protected network with the same results.My card is a RaLink rt3090.
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Oct 11, 2010
I have a pretty beat-up laptop, on which the inbuilt wireless doesn't work, and so I now have an ASUS WL-167g, which is acting up!It almost always connects to the required networks without an issue, but then once I'm connected it's REALLY slow on some of them! For example, while I'm at school, it works flawlessly! And at a couple of friends' houses, it works too! however, at home, and at a couple of other places, despite the fact that it connects, its so slow, that google takes like 5 mins to load and searching for anything on google leads it to time out!! This happens whether I'm right next to the router (full signal strength) or 2 floors up (at like 3 bars strength)!
It's getting pretty frustrating to have to swap my lan cable between my desktop and laptop constantly, and also to not be able to use my laptop away from my desk!Does anyone know what might be going on??Also, while i have you guys here! I have another problem -- with the inbuilt card.. Initially, it wouldn't work at all.. but more recently, it has started to function (it connects and works on my home network fine) the only problem is that about 10 mins after I turn the wireless switch on on my laptop, it hangs! (EVERYTIME) (if it's relevant, my laptop is a SONY VAIO VGN-S46GP). Again, any input would be appreciated!!
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Oct 16, 2010
I installed Lubuntu yesterday on an older Dell laptop and the installation went fine. The only thing not working after the installation was the wireless. After hours of searching, I was finally about to get it to recognize the wireless card, see wireless networks, and connect successfully by running these commands.code...
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Oct 17, 2010
I have ubuntu 10.10, and at my house I primarily used wired, and it works fine, and under windows earlier today I was able to locate networks, so my wireless card is working. I'm currently at my girlfriends house, and trying to connect to her wireless internet. When I try to connect, I can't find any networks. I've made sure her network has sharing and discovery enabled, however in my wirelss manager it comes up as blank. There's the option to add wireless manually, but do I really need to go through the trouble of finding the routers mac address and all that, it should just show up?I could switch back to windows to see if I can connect, but I'm almost positive it's just the linux wireless manager..
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Nov 6, 2010
I arrived in the Central African Republic only to find that my wireless (on an HP Mini 5102) wasn't working -- it didn't detect any wireless networks. So I wiped off Windows and installed Ubuntu 10.10, Luckily, it did! (Partly.) At first, I still didn't get any wireless networks. I messed around with all the various things you have to do to get Broadcom wireless drivers working. Finally, following a forum suggestion, I installed Wicd -- and this did the trick. Not knowing any better, I kept Network Manager alongside Wicd, but Wicd is what works much better. (Is there a reason to un-install Network Manager?)
However, when I try to connect wirelessly to the network at this country's one cafe with wifi (which usually works really well, by CAR standards), the network doesn't appear. At the office, when I open Wicd, it includes a box with the message "<connection name>: obtaining IP address", and bit by bit it connects. But when I open Wicd at the cafe, this doesn't happen -- it just gives me a list of random signals from nearby offices (all secured and low-signal), none of which I can connect to. Any ideas how I could get the cafe network to show up?I'm at the office now, and so it's working. However, in order to get it working I had to restart three times -- Wicd only seems to work about half or 33% of the time. Sometimes I get the message: "Connection failed: unable to get IP address" and sometimes I get the message "No wireless networks detected." Then I try again and eventually it works. So far.
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Nov 21, 2010
I've tried every fix i could find. I'm on a Dell Inspiron 1420 running Ubuntu 10.10 lucid lynx using a BCM4312 LP-PHYi've tried everything to get my wireless networks to connect but nothing works. I finally got my computer to recognize my wireless card but it doesn't detect or connect to networks. Before i was able to at least see the networks but not connect or stay connected once i disconnected the ethernet cable. i will post the output of ifconfig, iwconfig, iwlist scan
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Jan 28, 2011
I'm having trouble detecting wireless networks in range.
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Feb 27, 2011
First time ever switching from windows. Mainly doing this cause I though it would be fun to learn a new OS and see how it is.From watching a few videos it looked like all I have to do is click on the wifi logo at the top of the screen and I would get my router and a bunch of others (does this on windows) but when I click on it I dont get anything. I think it might be that im running this on a laptop. My wifi card is: Standard Dell Wireless 1501 802.11 g/nIts a new dell inspiron 5000 laptop i customized a little with more ram and a new video card.
Im guessing I will need to provide more info but as I said at the start Im new to this and not sure how or what info I would need to provide. Please just tell me how I can get any data you need and il get right on it. (I used Wubi to install this, went off without a hitch)
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Apr 26, 2011
I've used this computer to connect to a wireless router before. I recently moved and for some reason it isn't working.I have a too long of an lspci output to type (I'm on a different computer).
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Jun 8, 2011
I cannot see any wireless networks after waking the computer from suspend. Wireless works fine on boot. I've tried restarting the network service, but I still don't see any available wireless networks.
[code]...
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Jul 16, 2011
I have installed Ubunu 10.04, and after that i have installed the wireless driver from Hardware Drivers.
The problem is that no wireless networks are showing up and i cannot connect to my wireless router. Tried rebooting, but still nothing.
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Mar 21, 2010
I am running Karmic on a Compaq Presario V3000 and this morning my wireless card is not being detected by Ubuntu's NetworkManager. I have no idea what caused this... literally, it was working when I shutdown my laptop last night. When I right-click the NetworkManager icon in the panel it does not show "Enable Wireless" (only "Enable Networking"). When I run ifconfig in terminal it shows my wireless card as being there (UP Broadcast Multicast). One weird thing - on the front of the laptop there is an LED which lights up blue when the card is working (ie normally), but right now it is orange (ie, if you flick the switch on the front of the laptop to toggle the wifi on or off... I have toggled it back and forth but nothing changes!)
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May 26, 2010
Hope this saves some1 an immense amount of time;First type this;
Code:
rfkill list
check if the problem looks like this
[code]....
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Jul 24, 2010
I'm using Ubuntu 10.04. I was happily connected to internet and surfing some forum, when wireless connection suddenly stopped working.
Now I can't find any access point, and I'm pretty sure I didn't do anything to justify this behaviour.
It already happened a month ago, but I had to format my drive, so I didn't really bother to try to solve the problem.
Anyway. I'm posting here the results of the commands I think I can help with a diagnosis; if something else is needed.
I'm using a different computer to post this thread, so I'm manually writing the output.
Code:
sudo iwconfig wlan0
wlan 0 IEEE 802.11bg ESSID: off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
sudo iwlist wlan0 scan
wlan0 No scan results
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