Ubuntu Networking :: Wireless Connection Stopped Working - How To Make It Work

Apr 8, 2010

I have ubuntu 9.10 and my wireless connection has been working perfectly until a few weeks ago when I updated my laptop. I can connect to the internet using my wired cable but not by wireless. There is nothing listed under my wireless list. I am new to this and have been unsuccessful in getting my wireless connection going again. I don't even know were to begin. I have a 2wire modem also.

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Ubuntu Networking :: Wireless Connection Stopped Working?

Oct 20, 2010

About a week ago I upgraded to Maverick from Lucid.

All networking worked fine on Lucid.

I am using an Acer Laptop with the Atheros AR928X Wireless Network Adapter.

I can connect to my home network (visible, with WPA2-Personal) fine. However, I cannot connect to my university's wireless network. The only difference I noticed is that its network is using WPA2 Entreprise with Tunneled TLS Authentication and MSCHAPv2.

I tried dmesg and I got:

wlan0: authenticate with 00:1a:1e:ef:f4:e1 (try 1)
wlan0: authenticated
wlan0: associate with 00:1a:1e:ef:f4:e1 (try 1)
wlan0: RX AssocResp frin 00:1a:1e:ef:f4:e1 (capab=0x431 status=0 aid=2)

[Code].....

Unless the driver has changed, I suspect this is not a driver issue, since it worked fine on Lucid. Is this a NetworkManager issue?

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Fedora Networking :: WUSB54g Stopped Working - How To Make It Work

Feb 17, 2010

My wireless adapter stopped working randomly the other day. I think the last time it was working was right before I put the computer into hibernate for the first time. it stopped working even after restarting.modinfo p54usb shows (I'm leaving out information that seems irrelevant because I can't copy and paste without the internet, so I'm typing what I see from another computer)

firmware: isl3887usb
firmware: isl3886usb

dmesg | grep firmware doesn't seem to show any requests for firmware related to it. lsusb shows something like

bus 002 device 001: ID... linux foundation 1.1 root hub
bus 001 device 003: id... linksys wusb54g wireless adapter

[code]....

When I start up, in boot messages I get something like this

WARNING deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.
WARNING all config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release
Device wlan0 does not seem to be present, delaying initializtion [FAILED]

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Ubuntu Networking :: 10.10 Wireless Not Working - How To Make It Work

Jan 8, 2011

I've downloaded all the drivers and have an ethernet connection working however as I have an INSPIRON 1545, the network card is shoddy for LInux and I can't get the wireless working AT ALL.

lshw -C network
*-network
description: Network controller
product: BCM4312 802.11b/g LP-PHY
vendor: Broadcom Corporation

[code]...

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Ubuntu :: Program Central Stopped Working - How To Make It Work

Apr 13, 2010

This morning my program central stopped working and i don't know what might have caused it or how to fix it.

the problem is the download button, it doesnt seem to appear anymore as shown below:

[URL]

I got Ubuntu 9.10 64bit running GNOME

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Ubuntu :: Internal Speakers Stopped Working - How To Make It Work

Apr 26, 2011

I've been running Ubuntu on my Dell Studio 1749 laptop since I got it, around 8 months ago.I recently upgraded to Maverick 10.10 64-bit, reformatting and partitioning my hard drive in the process (got rid of windows since I never use it) and it was working perfectly until last Wednesday (22.4.2011). On Wednesday I unplugged my usb headset while in a Skype call to switch to the internal speakers and my computer freaked out, black-screened, and froze. When I rebooted, the internal speakers had stopped working completely, even though the sound works perfectly on both sets of headphones I have.

I've tried most of the fixes that have been presented in other threads and none of them are working, including rebooting the laptop with the headset in. I've tried that with both of my usb headsets, even though I don�t like using the one that it froze on for the exact reason that any time I have audio playing with that headset and it gets unplugged, it black-screens and freezes my laptop. Actually audio doesn�t even have to be playing, sometimes unplugging it even with nothing playing still freezes my laptop. It does it once in a while with my other usb headset, as well, but not every time or anything close to that often.One thread suggested that modifying /etc/modprobe.d/alsa-base.conf by appending the following line to the file would work:

Code:

options snd-hda-intel model=dell-m6

But that did nothing at all. Someone else said that they saved a copy of alsa-base.conf and replaced the whole thing with that line, so I did that, with no change. Then I purged alsamixer using

Code:

sudo apt-get purge alsa-base

and

Code:

sudo apt-get purge alsa-utils

Then I rebooted, and reinstalled them, which did not fix the issue. However, it did replace the alsa-base.conf file that I modified which shows me that it actually did purge it. (I was an idiot the first time I tried to purge it and only purged and reinstalled alsa-utils..xD So the file did not get replaced, which was when I realised my mistake) I have NOT modified the new file, although I did copy the contents to a text file in case I need to try that fix again.I should also mention that the speakers do work when first booting up Ubuntu to the log-in screen, both with and without headphones I ran the alsamixer diagnostic at the beginning of all this, here's the link: [URL] And then ran it again after purging and reinstalling alsamixer, here's the new link: [URL] I have tried messing with the settings, disabling the headset, setting the input and output manually to internal speakers while the headset is still plugged in, making sure with GNOME alsa-mixer that the speakers are not muted, rebooting with the headsets in and then unplugging them.

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Debian Multimedia :: Kde4: X Stopped Working - How To Make It To Work

Mar 10, 2011

There seems to be something that has changed in the newest stable Debian - I chose kde4 as my default desktop at installation, and it worked fine. Then I went and changed some options in both /var/run/kdm/kdmrc and /etc/kde4/kdm/kdmrc, something I have done many times before without problems.

However, when I tried to restart kdm with /etc/init.d/kdm, things didn't come up - no X, no kdm. When I rebooted the machine everything seemed fine, so I thought the problem was solved; but this morning I wanted to change something else - I don't want kdm to remember the last user, and I don't want to see a list of users either. Now dkm and X fail even when I reboot; I also find that /var/run/kdm/kdmrc has disappeared - I am certain I didn't remove it.

The strange thing, when I try /etc/init.d/kdm, I can kdm hanging around all alone in the process list, but no X or greeter. So what is going on - what should I have done instead? And can I repair it? I can of course reinstall the system, but I hate to think that we can't manage better in Linux.

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Software :: Vnc Server Used To Work Suddenly Stopped Working With Connection Refused Errors

Feb 22, 2011

I have a machine running with slackware64 13.1 and vnc servers is installed on it. It worked for months until yesterday, when I couldnt connect to the machine remotely.

I have 2 vnc "users" on this machine, root and "user". Each have their own desktop. Root has desktop :1 and user had desktop :2. Simple enough.

VNC servers is started via /etc/rc.d/rc.local with the command:

Code:

Code:

It worked flawlessly. I use the very same configuration on my home server, never had a glitch.

From the "distant" machine, I get this error when I try to connect:

Code:

Unable to connect to VNC server

What has changed so it no longer works? I assume its not a network problem since the machines are all located in my home network and there is no firewall or router in between them.

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Ubuntu Networking :: Wireless Suddenly Stopped Working AND Rfkill Command Not Working

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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Ubuntu Networking :: PPTP VPN Connection Stopped Working?

Oct 6, 2010

I managed to set up a PPTP VPN connection in Ubuntu 10.04, and it worked first time.This was about 3 months ago. It was working yesterday (Oct 05 2010), but when I came to log in to the VPN today it doesn't work. I tried the same VPN connection on my wife's laptop which runs Vista and it works. I have tried re-entering the details, even deleting and setting up from scratch via network manager. And yes I have the correct VPN plugins. what I should do. Is there a log file so I can have a look at it to see what the problem is. If there is where is it located. The computer is able to connect to the internet without any problems, just can't connect to the VPN. The only thing I can think of is that the update manager popped up this morning so a few things have got updated today. maybe something in there broke the VPN connection.

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Ubuntu Networking :: Wired Connection Stopped Working?

Mar 20, 2011

I'm running 10.10 on a brand new computer, and up until this afternoon the wired connection was working fine. All of a sudden it stopped working (and doesn't work in Windows either).I ran sudo dhclient and it gave me:

DHCPDISCOVER on eht- to 255.255.255.255 port 67 interval 3 (7, 9, 10, 18, 13)
No DHCPOFFERS RECEIVED
No working leases in persistent database sleeping

[code]...

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Ubuntu :: Make Wireless Internet Connection Work?

Oct 26, 2010

It's my very first time to use Ubuntu. I have just installed it but I can't figure out how to make my wireless internet connection work..

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Networking :: Network Connection Stopped Working ?

Nov 24, 2009

I have Debian installed a year ago, working perfectly until last week when network card connected to internet stopped to communicate. I did no change in configuration. It just stopped to work while I was reading an online web page. Network card connected to local network still works fine.

I thought it might be a NIC failure so I installed a new PCI NIC but no change, still no communication throught this NIC.

I verified/changed cable between NIC and the router, no luck. If I connect the same cable from router to a Windows PC, everything is OK. If I connect back to Debian machine, it does not work.

I tried connect this NIC with a different router with DHCP enabled, nothing, NIC will not communicate with DHCP server.

I tried to set static IP, no change.

Today I booted a Knoppix 6.2 and this NIC worked perfetly! It set up using DHCP, I could access the internet.

I booted machine as usual and the problem still persists of course.

This is information captured immediately after boot. The trouble NIC is eth0 after boot finishes.

All this was captured with eth0 connect to a router with DHCP enabled. There is no DHCP entry in syslog related to eth0. Reinstall is the very last option.

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Ubuntu Networking :: Wired Connection Randomly Stopped Working?

Feb 6, 2010

My ubuntu karma desktop is plugged into a wired connection that goes through a router and into my cable modem.Everything was working fine like it had been foseveral months yesterday morningSomething happened by the end of the day that has screwed up my wired networking. I plugged my laptop into the same cable thats plugged into my ubuntu, and the cat5 cable is live. Also when I plug said cable into the ubuntu box, the ethernet lights come on, or atleast a solid green one. Meanwhile the network connections Icon continues to have a red X and a tooltip saying "No network connection".

Under network settings, there is only one wired network "Auto eth0", but it says "last used: never" which is strange since I've been using this for months. When I click edit the main settings are MTU automatic, ipv4 automatic DHCP, and ipv6 ignore.hat could the problem be? By chance did a karma update get released that broke the networking

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Ubuntu Networking :: Connection Failed And Suddenly Stopped Working

Jul 4, 2010

I installed Ubuntu 10.4 side by side with my Vista. This is on a PC I leave on permanently and use as a sort of Sever, so Security and Network connection are VERY important on this device. I use it for documents and IP PBX (telephone system). I currently use Vista and 3CX, but I plan to roll it over to Unbuntu full time once its up and runnng correctly - I will just need to change the Grub2 conf priority. After install, all was fine and I managed to make many changes to settings, apps and updates, but I have noticed in the past week when going in to make further changes the network has suddenly stopped working! According to Network Manager and the icon on the panel it is connected and I can not see anything obvious that is not correct. I tried doing a PING (192.168.1.1) from Network Manager to the main router, but it failed. I know that there is nothing wrong with the network nor the card or PC it all sits on. It's working now with Vista and my other machines. It must be a config some-where.

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Ubuntu Networking :: Wireless Has Stopped Working?

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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Ubuntu Networking :: Wireless Just Stopped Working?

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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Ubuntu Networking :: Wireless Stopped Working On 10.04?

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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Fedora Networking :: Ethernet Connection Stopped Working - Cannot Find Server

Jul 23, 2009

After using fedora 11 for a month or two now the ethernet gave out on me tonight. However if I switch to my ubuntu or windows XP install it runs fine. I made no recent changes to network connections, and no installed programs that should effect it.

kernel version: 2.6.29.6-213.fc11
default connection: eth0(and only connection)
ifcfg-eth0:
# Networking Interface
DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=00:1F:C6:DB:05:0C
ONBOOT=yes
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
NM_CONTROLLED=yes
NAME=eth0
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
DNS1=192.168.1.254
PEERDNS=yes
PEERROUTES=yes

I have tried, restarting, older kernel, restarting services, and clearing the DNS Cache. The specific error I get is that "Firefox can't find the server", and most other applications return similar. I can however ping websites still. All other computers on the network are running fine, and booting into another system the internet will work. Just not for fedora.

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Ubuntu Networking :: Wireless Card Stopped Working?

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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Ubuntu Networking :: Wireless Stopped Working / Get That Back?

May 25, 2010

I updated to 10.04 recently and everyhting worked fine. Yesterday my wireless stopped working. Now I just get "Networking disabled" when I mouse over the greyed out wireless icon. Everything still works fine when I boot windows.

Here's the details from the HOWTO log an wireless issue guide http://ubuntuforums.org/showthread.php?p=6183681 . sorry for the length of dmesg and lsmod , I couldn't figure out how to add a spoiler tag on this forum. code...

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Ubuntu Networking :: Wireless Suddenly Stopped Working?

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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Ubuntu Networking :: Broadcom Wireless Stopped Working

Jan 18, 2011

I have a HP Mini 5105 SSD netbook, runing Ubuntu 10.10 with 2Gb RAM. My wireless card is a Broadcom BCM43224 802.11a/b/g/n. Its driver is enabled and running. The wired network connection runs fine too. The problem: Wireless stopped working. When I right click on the network icon, the enable network option is clicked, but the "enable wireless" option is listed in dark grey and cannot be clicked on. I have recently updated my kernel version to 2.6.35-24-generic. What I have already tried: this one too I got to know there seems to be a problem with the 2.6.35-24-generic kernel. I have gone into the GRUB menu (it took some time to find out that you have to keep the Shift key pressed during startup for the GRUB menu to show), chosen the older kernel version (2.6.35-23-generic) and then removed the faulty one. Nevertheless, nothing has changed. I still cannot enable the wireless. The outcome to lshw -C network is:

[code]...

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Ubuntu Networking :: 10.04 - Wireless Suddenly Stopped Working

Apr 18, 2011

I'm running a gateway lapbook w/10.04 LTS and an etheros wirless card. Card has been working fine for almost a year - from cold boot, warm boot, and recovery from standy (shut lid, open, press power button). I was fiddling with setting a static IP for the wirelss card by modifying the interfaces text file. I made some changes, and restored the file to its original contents after some noodling around. Wireless still worked fine after that. Last night I took the laptop out of suspend as usual - lifted lid, pressed power button - but the wireless indicator remained grayed out and I haven't been able to reenable wireless connectivity since. ifconfig shows the wireless card is there, and cabling the e-net port directly to my hub works fine.

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Ubuntu Networking :: Wireless Just Stopped Working For No Reason?

Jul 13, 2011

I go to the icon and it says "wireless is disabled by hardware switch", well I didn't press any hardware switch. My laptop is a Dell L501X, the "hardware switch" is the Fn button and F2. I've tried pressing this but nothing happens.

Is this a bug with the latest linux version? Cos everything was working fine until my laptop updated.

The version I have now is "Linux 2.6.38-10-generic"

I'm running 11.04 64bit.

Here is some info from console :

Quote:

me@XPS-L501X:~$ sudo ifconfig -a
eth0 Link encap:Ethernet HWaddr f0:4d:a2:59:00:34
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::f24d:a2ff:fe59:34/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[Code]....

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Fedora Networking :: Wireless Stopped Working In 12

Mar 18, 2010

I am having problem with wireless networking my fedora 12 since i opened network manager yesterday. But to my notice i haven't done any changes. But still i am not able find any reason for the wireless network not to work. When i try to restart the network servies it gives the following msg.

Quote:

Bringing up interface eth0:

This version of ISC DHCP is based on the release available on ftp.isc.org. Features have been added and other changes have been made to the base software release in order to make it work better with this distribution.

Please report for this software via the Red Hat Bugzilla site: [url]

Did i do something wrong with the network manager or did something go wrong with fedora.

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Ubuntu Networking :: Wireless Has Stopped Working Karmic Koala

Jan 20, 2010

Today my wireless has stopped working. I have a laptop hp6720s with network controller: Intel corporation PRO/Wireless 3945 ABG [Golan] Network connection (rev 02), dual boot vista/ubuntu 9.10, fully updated (kernel 2.6.31-17). I use a router edimax BR-6204 wg to use the net with other laptop. Till now i have using wicd for controll wireless without any problem, internet was quick and responsive. (Quick connection without any failure).

But today the internet was very slow and wireless starts to connect and disconnects intermitently, doing it unusable. This was what occured when i upgraded from jaunty to karmic and used the network manager from gnome, but then i fix the problem installing wicd. Now wicd behaves in the same way as gnome-network-manager. If i connect directly the computer to the router by wire, i have internet and everything works perfectly. How i can fix the wireless?. How i can do it works with ubuntu 9.10 and?.

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Ubuntu Networking :: Broadcom Wireless Stopped Working In Lucid?

May 5, 2010

after having tried out almost all suggestions found here and elsewhere on the internet, i'm somewhat at my wits end The situation: I'm running Kubuntu 32Bit Version (at the mom 10.4) on a HP-Compaq 6735s (AMD Processor, Vanilla 32Bit Install). My first Install was last year with 9.4 and the Broadcom 4322 wireless worked like a charm after installing the proprietary STA-driver under System -> Hardware Drivers. As the update didn't work out really without glitches, i did a fresh install and lost my wireless. I tried various combinations and tutorials but to no avail. My card is found, the driver installed, but i cannot access my access-point. I can SEE the access point (and all my neighbors'), but knetworkmanager does not seem to do anything. To be sure, I installed wicd (nice tool by the way). Trying a connect here told my my credentials were bad (incorrect passphrase for my WPA2 Personal auth), which is not true. I tried connecting without security, didn't get an IP. So it seems somehow the card is working, but all functions needed for passing information to the access-point are unavailable.

This is what I tried:

both broadcom-drivers
fw-cutter
installing the driver by hand

Installing the driver via Hardware Drivers produced the same results as any other, viz the card is working, but not connecting. Unfortunately knetworkmanagers error messages are a bit sparse, or rather non existant. My guess is that somehow the firmware is not properly loaded (or the wrong type??).

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Ubuntu Networking :: Wireless Network Stopped Working After Update 10.04?

May 7, 2010

i have lucid installed on my toshiba laptop after after an update my wireless stopped working keep asking for password and my wireless card is not detecting no wifi :

*-network UNCLAIMED
description: Ethernet controller
product: AR5001 Wireless Network Adapter
vendor: Atheros Communications Inc.

[Code].....

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Ubuntu Networking :: 10.4 Wireless Has Stopped Working Since A Recent Upgrade

Jul 9, 2010

Like many others it seems, my wireless has stopped working since a recent upgrade The answer does not lie in analysis of logs, settings etc. but surely with those who did it - they should provide a fix. I cannot believe everyone expects each individual users to go into their own analysis of why this is no longer working as it is clearly widespread. I have been using Ubuntu for 18 months without this problem on the same dual-boot laptop, and it still works on Windows as before, only Ubuntu 10.4 has recently stopped my network card from working.

I need to know when this will be fixed. I have been embarrassed by promoting Ubuntu to many colleagues who now also cannot work at home on their wireless networks. Seriously disillusioned I may start looking for a more stable alternative to Windows.

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