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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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 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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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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Ubuntu Networking :: WPA Wireless Stopped Working After Recent Update?

Sep 4, 2010

I have an EEE 1000 that successfully connected to WPA networks until yesterday. I tried re-installing the RT2860 drivers that had been previously modified and did not have success.

Additionally, I just installed 10.04 on a Gateway laptop that's a few years old. It immediately connected to the WPA network and I ran the updater. Lo and behold, after updating it no longer connects to the network.

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Ubuntu Networking :: Wired Network Stopped Working / Wireless OK

Sep 21, 2010

I'm not a total newbie, but run into some strange problems with my installation of Lucid.Everything was working fine yesterday. I shut down the laptop and powered it up this morning and had problems with network. I have two NICs (wired and wireless). Both are set to pick up IP settings from DHCP and both do, however when using wired network I can't communicate with outside world - can't even ping the default gateway (but pinging 127.0.0.1 or IP address of the NIC no problem, so stack should be OK).When on the wireless network everything works fine (otherwise I would struggle to write this post ).What is very weird though is that I have a VMWare Player installed and using Windows VM on wired network works just great!

I noticed that when you're persistent it happens that you can ping but huge chunks of traffic are lost (e.g. packet 1-10 would pass, 11-40 would be lost, 41-59 would pass and so on).I restarted Ubuntu, tried shutting down interfaces, disabling networking and nothing helped. I don't recall performing any changes (at least that I would be aware of).Can anyone suggest something?BTW. This is not DNS issue as both IP addresses and FQDNs do not work. When I refer to using a given network (wired or wireless) the other one is down with ifconfig command...

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Ubuntu Networking :: After Hibernate, Lucid Wireless Stopped Working?

Oct 9, 2010

I recently installed 10.04 and everything Just Worked.Before Lucid, I was using 9.04 and had successfully gotten my Broadcom 4306 working perfectly... which is why I think the Lucid install went so perfectly.Well, after a botched hiberation (Dell Inspiron 9100), my wireless is dead in the water.I've tried "ifdown", "iwconfig", "/etc/init.d/network restart" and "force-reload", 'modprobe -r b43'

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Ubuntu Networking :: Wireless Stopped Working [Maverick] / Where To Start?

Nov 15, 2010

I'm using Maverick and since yesterday, my wireless hasn't been working. It was working before with Maverick and I don't recall doing any updates that might have changed wireless configurations.

By "doesn't work" I mean it doesn't recognizes any networks, as if the wireless was turned off (there's this button on laptops, but it's turned on). I had that problem some time ago, but rebooting solved the problem, which, now, didn't.

My laptop is a HP dv6420la.

Where to start?

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

May 11, 2011

Well, I have an issue with my wireless card in Ubuntu 10.04, my wireless card model is:
the D-Link WIRELESS N 150 DESKTOP ADAPTER DWA-525. I was already successful getting it to work by using the RaLink driver suggested here and following the instructions in their readme.But after a system update I performed through Update Manager (in which I guess the kernel was updated), the device stopped working completely. The wireless icon remains(in the top panel), but it displays a red exclamation mark next to it

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Fedora Networking :: LAN Stopped Working Through Wireless Router

Sep 17, 2009

I have a wireless router at home, but I usually have my laptop connected to it through an ethernet cable. It had always worked with no problems until some time last week when the wired network stopped working (but the wireless still works with no problem). At first I thought that it was some update, but no. My laptop works ok with the wired network at my office, and I also tried a different laptop at home and it didn't work. It's not the cable either, I tried a different one. I haven't changed any settings in my router.So I really don't know what's going on. I just find it weird that the router's wired networking suddenly stops working but the wireless still works fine...

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Fedora Networking :: Wireless Card Stopped Working?

Jan 9, 2010

I have a relatively new F12 install (one week old) on which I got my wireless Broadcom card working using kmod-wl-PAE. It was a very easy process - not really a process just yum install kmod-wl-PAE.

After a few updates, I notice that the wireless card stopped working. I assumed maybe there was an update that conflicted, so I did a reinstall of kmod-wl-PAE and it worked again immediately.

Then I started installing compiz-fusion. Immediately after, wireless is broken again. So I yum erase kmod-wl-PAE and then yum install kmod-wl-PAE and it works again.

Now, only slightly later that same day, wireless stops working more or less randomly and I cannot get the reinstall of kmod-wl-PAE to fix it. So I uninstall, disable compiz-fusion, shut down, and restart the computer to try again. My thought is that maybe along the way my autostart compiz or something about compiz is causing the wireless not to configure properly. When I restart, wireless is working. Without kmod-wl-PAE installed:

yum info kmod-wl-PaE
Loaded plugins: presto, refresh-packagekit
Available Packages
Name : kmod-wl-PAE
Arch : i686

[Code].....

One, how is this even possible, and two, what is going on with the wireless working, not working, working, not working?

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