Ubuntu Networking :: No Longer See Any Networks Under "Wireless Networks"?
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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Jan 29, 2011
I have a msi netbook with ubuntu netbook remix installed and it was working great until yesterday when suddenly it stopped detecting my home network. There are no problems on my two other machines, so I'm sure the problem is the netbook. I have no idea how to go about troubleshooting this. I was hoping someone could help me by giving me a place to start.
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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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Apr 16, 2011
I am trying to configure my android phone (rooted Eris running kaossfroyo 2.2) to be used as a midi controller. Which I am having enough trouble with as it is but it has raised an annoying issue that occurred a month ago when I used the phones tethering network with my laptop. After connecting the laptop to the phones network (either tether, or an Ad-hoc network created using the network manager) I am unable to switch to other networks. In other words when I'm done with the phone-laptop connection I cannot connect my laptop to my home network! When I click on the other network connection I can see that it is attempting to connect in the upper right corner of the desktop (the network icon) but it will not make the connection.
What happens is that the network indicator will make the little circle graphic as if it is trying to connect but it never will display the other circle as green indicating that it has connected. but when I disconnect from the home network that is not connecting I will get a message underneath that will say that ad-hoc network disconnected! If I am switching from the android tether it will say Android-Tether disconnected etc. Even though when I click on network manager it shows that I am attempting to connect to the home network (labeled LIBERTY in my case) upon disconnection it shows the ad-hoc or tether connection being disconnected.
I am absolutely baffled by this! The issue persists even after deleting the ad-hoc connection from the wireless settings tab!!! I would speculate that for some reason the laptop is attempting to connect to the previous ad-hoc connection despite me wanting it to connect to LIBERTY. I am very confused and hope someone can lead me in the right direction.
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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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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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Feb 11, 2010
I have an Acer Aspire 3000 and just installed a Netgear WGR614ver9.I installed FreeSpire and it works great.{well except} I am online with Eth0 now. It says the wlan0 is working but it does not see any wireless network. I tried it at a couple of places other than here where I thought it should detect a wireless network but it did not. How can I determine if it is FreeSpire or the Wireless card at fault?
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Jan 14, 2010
I have some problems with connecting to my wireless network (WPA2 security) on Ubuntu 9.10 64 bit. Upon boot I can sometimes connect and sometime it takes minutes or more to ask for my wireless key to connect. When I give my key, nm-applet keeps spinning until it asks for the password again etc.) At random it connects and disconnects from the AP (sitting at about 5m) At times I can get stable connections, but still disconnects at random.
On the same computer I also run Windows 7 (Vista before) with always instant connection. My Faithful Powerbook also always connects instantly. The problem above also appears in Live-CD mode or with Knoppix 6.2 Does anyone experience this behavious as well? I have a Dell 630c with an Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61). The AP is a Linksys WAG54G
[Code]...
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Jan 25, 2010
NetworkManager no longer shows my wireless N network. But when I boot into windows (dual boot) I can see my network and use it.
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Mar 1, 2010
I am running Ubuntu 9.10 on an ASUS eeepc 1000HE, and my wireless card, RaLink RT 2860, is failing to recognize any wireless networks. It was working fine this morning, until I accidentally hit Fn F2, disabling the wireless card. I hit Fn F2 again to reenable it, but it no longer will detect any wireless networks (and other computers in the household do recognize them). I googled quite a bit and talked to a human about this but could not fix it. We tried dhclient ra0, which returned
There is already a pid file /var/run/dhclient.pid with pid 2438
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit [URL]
Listening on LPF/ra0/00:25:d3:13:f4:20
Sending on LPF/ra0/00:25:d3:13:f4:20
Sending on Socket/fallback
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 6
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
Other data:
iwconfig returns
(other stuff here...)
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Mar 8, 2010
I have noticed that on my laptop, when I check for available networks; I get this [picture attached]. However all those networks are non existent at that time when I scan for networks with my desktop PC (which is right next to the laptop). How can I stop these phantom networks from appearing? Note: One of those networks is mine. Even when I have my router switched off, my laptop (running Linux Mint) still says it is available.
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Mar 23, 2010
I have a machine running Xubuntu [2.6.22-14-generic]. I have been trying to get this machine connected to wireless for ages, and I'm having another stab at it. So far I have install ndiswrapper and loaded the driver for a Linksys wireless adapter. The output of 'ndiswrapper -l' reports:
Code:
wusb11v4 : driver installed
devoce (13B1: 000B) present
So as far as my newbie knowledge goes, I believe that step to be completed, correct?When I turn on the machine is type in
Code:
sudo sh
modprobe ndiswrapper
to get the card running to where it will appear in the iwconfig dialog.The commands 'iwlist wlan0 scan' will list all the wireless networks around me, but I have been un-able to connect to any network, even unencrypted ones. I have tried to connect both through Wicd and command-line to no avail. For command-line I have used:
Code:
sudo ifconfig wlan0 down
sudo dhclient -r wlan0
sudo ifconfig wlan0 up
[code]....
With the final 'dhclient wlan0' commands, the following is returned:
Code:
There is already a pid file /var/run/dhclient.pid with pid 134519120
Internet Systems Consortium DHCP Client V3.0.5
Copyright 2004-2006 Internet Systems Consortium
[code].....
I have attempted to go ahead a step further and connect to an encrypted wireless network, however, I receive the same message, as well as another error message upon trying to enter the key, with the following code:
Code:
iwconfig wlan0 key s:"thekey"
Error for wireless request "Set Encode" (8B2A) : SET failed on device wlan0 ; Invalid argument.
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Apr 23, 2010
No wireless upon re-installation of 9.10 Drivers seem installed. No wireless networks detected. code...
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May 3, 2010
Im new to linux in general but i cant cconnect to my internet only by :ssing dell 1520 inspiron and linksys router
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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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