Ubuntu Networking :: Not Detecting Access Points After 10.04 Crash?
May 19, 2010
I installed the new ubuntu 10.04 distro using packagemanager, everything was fine intill i booted up today and there was no access points at all, i tried everything i could think of ( not a lot ),, so i decided to freshly install ubuntu 9.10 and start over, but there is still no scan results, from iwlist or any connections in networkmanager, i checked and the driver was installed and it was showing my card under iwconfig = eth1,
DELL 1545 INSPIRON
and it's a BCM4312 WIRELESS CARD
UBUNTU 9.10,
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Aug 31, 2010
I used to use Ubuntu 10.04. Never had this problem. I went back to Windows 7 and then came back to Ubuntu, and 10.04.1 was released. After some usage of wireless internet, it disconnects from the access point, and phy0 has 100% usage. [URL].. I'm not the only one with the problem. I downgraded to 9.10, and haven't had that problem since the downgrade.
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Oct 7, 2010
I have wireless G and N access points in my house. The N network is set to allow only N connections. I have a Lenovo laptop with a Intel Wireless N chip in it, and after one of the 10.10 updates it stopped connecting to my N access point. The G access point works just fine.
The logs for the Wireless N access point alway show "Bas Password." I am having the same problem with either NetworkManager or wicd.
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Dec 11, 2010
Installed 10.10 maverick on my compaq mini 110, activated the restricted STA driver... But under the networking drop down it shows wireless as enabled but I cannot actually see any networks, there should be about a half a dozen to see. Works fine under windows. Before the restricted drivers are activated ifconfig shows eth0 and after eth0 and eth1 but when I do iwscan eth0 or eth1 it tells me this action is not supported! I have tried reinstalling from cli but no difference?
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May 11, 2011
I am having trouble connecting to 1 particular wireless hotspot. It used to work in Ubuntu 10.10, but after upgrading to Ubuntu 11.04 it sees the Access Point, tries to connect but never succeeds. I can however still connect to my home router. Both use WPA2, both have a good signal. I have an ASUS UL30a laptop with a (output from lspci): Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01) NIC I was thinking of installing the linux-modules-backport-net package?
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Mar 21, 2010
Is there away to view wireless access points without being connected. I am having trouble getting connected to my wireless DSL modem. I have no problems connecting with Windows Vista. Just can not get Ubuntu 9.10 to connect. iwconfig says no associated with access point. I can connect with ethernet cable.
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Jan 15, 2011
I'm not exactly sure if this should be here and not in the Hardware & Laptops section, but seeing as my only problem is with WiFi, I'm guessing this is the right place. Under Ubuntu, my laptop (an Asus K42Ja, more details below) can see wireless networks normally. However, when I attempt to connect, it fails to establish a connection. Under Windows on the same laptop (dual boot), no problems are experienced.
According to this, there's a firmware bug in my wireless chip which causes connections to get dropped. I'm not getting connections at all, but I still tried the workarounds on that page with no luck. The router is a TP-Link TL-WR340G. My previous laptop, a really old one from 2003 running Ubuntu 9.10 was able to connect to that router without problems. The wireless card was Intel on that as well (but, of course, much older). The router is set up to use WPA for security. I didn't use WPA2 as I read something a while ago about problems with WPA2 and some Linux distros. Please correct me if I'm wrong here.
If anyone's curious, I'm posting this on Ubuntu, via an ethernet cable to the router mentioned earlier. Some tasty technical bits: dmesg (the latter half of the "timed out" messages is me retrying after double-checking the WPA key)
[Code]....
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Aug 21, 2010
A friend of mine is building a data acquisition system for a vehicle that will wander through city streets and roads and perhaps even off-road places. At the end of the day, back at the garage, the data must be downloaded and, if needed, upload an update of the data acquisition program. The network is wpa_supplicant, and it was chosen an USB device, because the original computer did not had any wireless interface and do not have any other possibility. The problem is that, when the vehicle comes back, very often there is no access to the on-board computer, or the connection lasts just a few minutes.
The computer must be reinitialized so the connection is back and the scripts run completely. Sometimes the connection is made, but the guys are so used to restart the computer that they do it anyhow, and then the connection does not come up, they have to restart it again.I have being thinking, as the vehicle drives all around, perhaps finding some access points along the day, if this connection trials - and failures - are messing up something. Or, the connection instability as the vehicle approaches the garage, could be driving his scripts mad?
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Oct 15, 2010
I can connect to my school's wireless network using the standard network manager, but often (not always) it repeatedly disconnects and reconnects every few minutes. Occasionally it also prompts me for the security information again (even after it previously connected successfully).
By running iwconfig when it's on the fritz, I can see that it's often switching access points for the network - which is what I think is causing the problem. It disconnects and reconnects even when the signal strength for the current AP is fine, and it will often switch to an AP with a weaker signal strength.
$sudo lshw -C network
Code:
description: Wireless interface
product: Realtek Semiconductor Co., Ltd.
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlan0
[Code]...
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Jul 11, 2010
my laptop goes on unexpected crash several times without any warning.suppose i am writing something on gedit or browsing my system crashusic stops playing nothing happens.everything comes to at hang.i am running fedora13_64bit version on vaio vpccw16fg laptop, nvidia geforce 230m graphics card. i havent installed my nvidia graphics card yet, may be the graphics card driver that comes within the live cd is responsible for this.but still i want to confirm from u people about this problem.stalled the new kernel2.6.33.6-147.fc13(x86-64) and u know what this kernel doesnt even show me the login page. it hangs after completing the boot
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Jun 2, 2010
Here's the deal: I had a hard time with the 10.04 installation. This is my mom's 6-year-old Gateway E4000. During various points in the CD installation, it would crash, I'd get the error:
Code: Glib-Warning **: getpwuid_r(): failed due to unknown user id (0) and then a row of white vertical lines would start blinking on a black background. And I was like, "What?"
But after combing the forums, I managed to get through the entire install by hitting F6 at the beginning and selecting acpi=off, noapic, and nomodeset, then install. Coolio!
But then, when I boot, the same thing happens. The Glib-warning is gone, but at any point during boot, or five minutes after it's booted successfully, or ten minutes, the screen will go blank and I'll get those white blinking lines of death. Also, for the entire installation and the first few boots, my top menu bar was totally effed. It was upside-down and pixelated. This seemed to fix itself.
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Mar 1, 2010
I have two wireless access points in my home network. A Linksys upstairs and a Watchguard Firebox downstairs. The Firebox acts as the gateway for my network to the internet (well, the ISP's router anyway). I invariably use my Hardy Heron installed HP laptop downstairs, less than 10ft from the Firebox. The signal bar for the Firebox shows three bars, the linksys just one. So, why the heck does my Ubuntu insist on connecting to the Linksys everytime?! I can manually switch it afterward but still, it's annoying.
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Apr 6, 2011
How can I go about seeing the different AP around me using the terminal?
OpenSuse linux
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Jan 8, 2010
I'm going to write a script that flashes all AccessPoints in our network, with an expect script. Unfortunately the following code doesn't work.
Code:
spawn cat <file> | ssh root@$ip mtd -r -e linux write - linux
cat: invalid option -- o
Try `cat --help' for more information.
So it doesn't understand the pipe thing anymore. Is there a way to get this command working?
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Apr 3, 2010
Is there a CLI command or program that will list available wireless access points? I'm running Ubuntu 9.04 on a laptop and sometimes I boot straight into the CLI instead of a GUI. I know iwconfig can configure a connection but will not list available AP's.
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Jul 8, 2011
I have an Ubuntu 11.04 laptop that I use to connect to a Windows 7 server. Everything was working fine until the hard drive on the server crashed and it was replaced with a backup. Now I intermittently lose access to the shares with Nautilus giving me the following message:
"The folder contents could not be displayed.You do not have the permissions necessary to view the contents of Folder"
When I look at the mount points in terminal I see the following:
drwxr-xr-x 5 root root 4096 2011-07-08 13:12 .
drwxr-xr-x 23 root root 4096 2011-05-03 11:17 ..
d????????? ? ? ? ? ? Folder
Where Folder is the mount point.My fstab looks like this, although I must point out that I have tried virtually every possible permutation with no change.
//10.35.1.110/Share /media/Folder cifs rw,_netdev,iocharset=utf8,credentials=/root/smb/credentials,uid=1000,gid=1000,noperm,file_mode=077 7,dir_mode=0777,sign 0 0
Sometimes the permissions will revert back by themselves, sometimes I need to umount and mount to get back in.I have tried deleting and recreating the mount points. No change.It is driving me up the wall, I have tried everything I can think of, installing/uninstalling winbind, the fuse modules etc etc. I use this machine as a production machine in a heterogeneous environment and everything works awesomely except for this. I love Ubuntu, I can't even think of booting Windoze these days but not being able to access the network shares is a right show-stopper for me.
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Aug 17, 2011
Yesterday, while upgrading from Ubuntu 10.04 to 11.04, the computer crashed. For this reason, when I reboot, Ubuntu doesn't recognize any longer the root folder and so on... and halts execution in a blank screen (well before the login screen).I'm currently running LiveCD and I can see the Filesystem with the root folder, the bin folder, home folder and so on....My question is How can I access the files I had in my desktop from LiveCD? I know the user and password so how can I access it?
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Mar 25, 2011
Ubuntu 10.10 has crashed and I'm resigned to a re-install, however is there any way to recover or access my files via the CD, live, during install or after ?
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Mar 25, 2011
I created a lab of 15 PCs connected to a server using samba. Everything works fine, but it's possible put a link on the desktop that points directly to the shared folder on the server?
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Mar 11, 2010
I'm trying to get my friend's laptop(acer travelmate 2200) to connect to his wireless network. I just installed a new hard drive and installed a dual boot windows xp/ Ubuntu 9.04 setup.
His laptop still connects fine with the old hard drive with windows XP installed, so I know the hardware is working.
When I click on the network manager , however, I don't see anything. Normally , I'd just hit the network manager and I'd see the available connections , but on this laptop I'm not detecting any.
The only thing I can think of , is that Ubuntu doesn't have the proper drivers needed for the wireless card in the laptop. But I don't know how to go about checking this since whenever I've done this before it's always just worked automatically.
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May 7, 2010
I have a Lenovo W510 loaded with Ubuntu 10.04 but it does not detect my onboard 3g modem
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Jan 2, 2011
I have Windows7 installed Oracle Virtual machine. On VirtualMachine i installed BackTrack4. I'm using datacard (India,Reliance ZTE EVDO3.1mbps) for my internet. I'm able to get internet on my backtrack OS via share using NAT. But when i try to use wireshake to trace my data i'm unable to trace the data send from my windows7 OS.
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Jan 30, 2011
I have a USB modem working in windows. But no luck to connect using Ubuntu 10.04.
I have setup usb-modeswitch and other stuff. The modem is attached to port ttyUSB0. But when i run "sudo wvdialconf" it displays message like this.
Editing `/etc/wvdial.conf'.
Scanning your serial ports for a modem.
Modem Port Scan<*1>: S0 S1 S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Sorry, no modem was detected! Is it in use by another program? Did you configure it properly with setserial?
read the FAQ at [URL]
If you still have problems, send mail to <wvdial-list@lists.nit.ca>.
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May 24, 2010
Code:
~$ sudo mii-tool -v eth0
eth0: negotiated 100baseTx-FD flow-control, link ok
product info: vendor 00:07:32, model 17 rev 2
basic mode: autonegotiation enabled
[Code].....
Sometimes my network will be gbit, others it wont. Its quite annoying when trying to transfer large files to and from my server. Hardware is Asus K7 series laptop, which works "sometimes". Can't really determine when it wants to choose gbit.
If i mii-tool -r (renegotiate) it doesnt get better, and -f (force) doesnt provide the option for 1000baseT, only 10baseT and 100baseT.
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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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Jan 3, 2010
Even thought my Westel Model 7500 has the appropriate green lines (Power, Wireless, DSL, Internet), it always takes my Ubuntu 9.04, Dell Inspiron 1545n considerable effort to connect to the wireless network. Please note that I am using WPA security and MAC filtering.Below is the series of events, spanning about 10 minutes every time I boot up the laptop.1. Tries to connect wirelessly automatically.2. Pop-up appears with SSID and password in dots.3. Tries to connect wirelessly4. Pp-up appears with SSID and password in dots.5. Tries to connect wirelessly6. Pop-up appears with SSID and password in dots.7.Tries to connect wirelessly then says "[SSID Name] now disconnected"At this point I manually connect to wireless and after 45 seconds it says "[SSID Name] now connected"
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Oct 14, 2010
last 6 months i was trying to connect internet on Ubuntu 10.04 yet i don't know how to connect internet i used mobile samsung s3310 with aircel
in windows its required hardware supporting software ,i dont know whether it's required for Ubuntu.
i followed instruction on ubuntu forum that is in
network manger->new connection->mobile broadband connection-> modem type (in that box is not enabled so i cant select my device)
->provider country(india) ->choose provider(Aircel)->billing plan(aircel prepaid ->APN is aircelgprs and dialup number is *99***1#)
->finally i did everything and applied but the network manger not showing any mobile broadband connection i am tired
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May 28, 2011
have installed fedora 14 in my dell inspiron laptop and it is not detecting wi-fi of my college in fedora but in windows 7 it is detecting. how i can sort-out
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Dec 18, 2010
I have loded centos 5 on vertual machine, my host machine is windows xp and has two NIC cards working perfectly well
1) realtek RTL 8139 family PCI fast eathernet NIC
2) realtek 8169/8110 family gigabite ethernet NIC ( ONBOARD)
but both of them are not getting detected by CENTOS
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Apr 21, 2010
I would hope that the title gives my problem away, but my wireless card is not detecting networks. I'm a total new guy to the Linux world, so please be patient with me. I currently have Ubuntu 9.10 installed on a stock Toshiba Satellite L505D-S5965.
zeus@olympia:~$ lsb_release -d
Description: Ubuntu 9.10
zeus@olympia:~$ uname -mr
2.6.31-20-generic i686
zeus@olympia:~$ lspci -nn | grep -i wireless
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8187SE Wireless LAN Controller [10ec:8199] (rev 22)
[Code]...
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