Ubuntu :: Hardy Heron Kept Dropping Network Connection (both Wired And Wireless)?
Apr 30, 2010
using Hardy Heron on a old Thinkpad T41.This is a fresh install system and I noticed it kept dropping wireless connection. After google around, seems like this is a common problem? Then I switched to wired network, and turned out the same thing happens again. Looks like doesn't matter wired or wireless, it kept dropping itself from time to time.
fter checking syslog, I found something interesting...it kept complain eth0 is invalid, then it said it found a better connection?I found that extremely weird..
Code:
Apr 30 06:24:32 support kernel: [ 961.236895] e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
[code]...
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Jan 3, 2011
After days of trying to get a TL-WN321G usb driver to install in Hardy Heron, it finally arrived in the proper place. In trying to then set it up, I got as far as enabling roaming mode, and the icon showed that the system had made a connection to my Belkin-ASDL-G router. I launched Firefox, which momentarily showed Google home page(where I'd been last when using a wired lan), then it changed to "Server not found".
I've tried rebooting several times, but it remains the same. Each time the dongle led lights up, the icon shows it trying to make a connection to the correct network, but it fails to do so.
On another pc on this network, I looked in the router settings for DHCP client list, and this client has now vanished from the list where it had been showing before. Possible complications may come from a setting in the client list that still shows up with the same host name, generated by an earlier attempt with a different usb dongle.
So two questions - do I need to find out how to remove the old client first, if so how ? And secondly, does anyone recognize the symptoms and can offer a solution ?
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Jul 11, 2011
I have an Ubuntu box, 11.04 x64, running on a Dual Opteron SFF box (iWill ZMaxDP... pretty old machine). Up until a few weeks ago, it was acting as a Windows 2008 Server, but i moved it to Ubuntu.
Anyway, the machine will not stay on the network for any amount of time, without falling off... I have changed network cards, cables, ports on the switch, etc, and nothing seems to work. I have a Windows 2003 box giving out DHCP addresses, and for a while, i actually tured that off and setup a second Ubuntu box to give IPs... it made no difference. The box gets an IP, and can ping outside for a bit (2 min or so) and then just looses connectivity... ifconfig shows it with an IP (i have tried both Static and DHCP config) and nothing seems to work...
[Code]...
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Jul 10, 2010
I can't install a PCI Wireless Adapter TRENDnet model TEW-623PI in my Hardy Heron 8.04 LTS.
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May 13, 2010
Two weeks ago I decided to ditch my XP install completely and switch to Ubuntu 10.04. So far so good, and I'm very happy with my decision. However, about 3 days ago, my wired connection started playing up. It keeps dropping out every 2 hours or so between 13.00 and 04.00. After dropping out, it immediately reconnects again (at least when I use Automatically DCHP config). From 04.00 to 13.00 it is more or less stable.
I tried resolving by reserving an IP in the DCHP Client Table in my router (linksys WRT120N). Additionally, I told the Network Manager to use the Manual configuration. Unfortunately these changes didn't help and the problems stay the same......
The daemon.log shows the following information code...
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Apr 1, 2010
I'm Just a newbie here my OS is ubuntu 8.04 LTS I tried to install chrome9 driver chrome9.83-242-u804 on my laptop after i have installed that my laptop is umm. like this picture..
but when i use external monitor the external monitor is fine but my laptop still no change what does i should do?
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Sep 16, 2010
I want to upgrade from Ubuntu 7.10 - the Gutsy Gibbon to 8.04 hardy heron. Will I have any problems after installation using the update manager. Will I lose any programs or files (mp3's movies) on my computer after installation? Are there any serious bugs that will my machine useless afterward?
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May 24, 2010
I had an install of 8.04 running Tomcat 6 on port 80. I did a marathon upgrade session to 8.10, then 9.04, then 9.10, and finally to 10.04. My website no longer loads (from Internet, LAN, or local), and a port scan shows port 80 is not open. I have removed and reinstalled Tomcat 6, to no avail.
Could it be that the 10.04 upgrade saw an existing Desktop install and locked this port down? The /etc/Tomcat6/server.xml shows it is using port 80, so that much appears to be correctly configured. Before this would give me the ROOT webapp. Anything else I can check? Does this sound like a Tomcat problem or something Ubuntu is doing?
As a side note, I have installed the Tomcat 6 Docs and Manager apps as well. These also worked before the upgrades, and do not now.
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Jul 3, 2010
I am having trouble setting up FamilyShield on an Ubuntu 8.04 system. The setup instructions on this (opendns.com) site are for newer versions of Ubuntu. Network Manager settings are different in 8.04 and don't correspond to the instructions. However, given the age of this computer, it cannot run a newer version of Ubuntu, and 8.04 is an LTS supported until 2011,
Complicating matters is I am living as a guest, so do not have the option of setting FamilyShield on the router. It must be done on my computer.
Here's what I've tried:
System->Administration->Network
go to DNS Tab and add the FamilyShield DNS numbers. BTW, there are two DNS numbers from the internet owner's ISP (Roadrunner) automatically in here already, along with "socal.rr.com" in the Search Domains field. If I try to delete them, they reappear when I reboot. If I add FamilyShield DNS numbers here, either along with, or in place of the ones that automatically appear here, they do not take, and on next boot FamilyShield DNS numbers are gone, but "socal.rr.com" DNS and search domains reappear.
I've also tried:
Code:
sudo gedit /etc/dhcp3/dhclient.com
and added following line at the end:
Code:
prepend domain-name-servers 208.67.222.123,208.67.220.123
When I reboot the system, I'm still using the assigned DNS numbers from "socal.rr.com".
I was able to try a newer version of Ubuntu (on a different machine) on this network, and it worked fine with the setup instructions. So this appears to be a problem specific to how Ubuntu version 8.04 handles DNS number changes.
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Sep 16, 2010
Given that 10.04 fails to work on my old pc, where do i find installs of hardy heron (which i know works) or karmic koala (which may work).
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Jul 14, 2011
I've just installed 11.04 Natty on an old Laptop (Dell Lattitude C400) and am unable to connect to my home network (wired LAN connection, no wireless). The laptop previously had WinXP installed and was able to connect (I have also double checked the cables and ports and they're all functioning ok).
sudo lshw -C network
Code:
*-network
description: Ethernet interface
product: 3c905C-TX/TX-M [Tornado]
vendor: 3Com Corporation
[code]...
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Feb 25, 2010
I'm trying to set up a wireless or wired network (wireless would be better...) to share my connection with my housemate, as well as with some devices. The only guide I found regarding this (I must admit, I didn't have much time to put into research), was dating back to 2005, and although doable, seemed somewhat confusing. Getting to the point: is there a way (maybe a standalone program, or some kind of plugin) to share a connection?
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Feb 17, 2009
I've installed F10 on my laptop since few days and I'm facing an annoying networking issue: the network connection seems to work well when, suddently, it goes down for a while, and then come back.This happens with both wired and wireless (Intel PRO/ Wireless 3945ABG) connection.
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Mar 11, 2011
I have just done a new install of the latest opensuse 32bit and for some reason I cannot connect to the internet, when I click on mange connections the vpn tag is highlighted and all the other tabs are grayed out and I cannot select them. So I can't setup a internet connection wired or wireless. I was just using Kubuntu and did not have this problem. My card is broadcom.
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Jan 19, 2009
I have a Mandriva linux box connected by cable to my router. When I stream audio using this box it crashes all the wireless computers on my network. There is no effect on wired computers. All but the one computer are windows (xp or vista). The affected wireless computers are not able to even find my wireless network. I have to reboot the router to get them online.
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Apr 20, 2010
I am having trouble with my new Huawei USB modem. It gets detected and lsusb shows me the vendor id and product id as 12d1 : 140b Huawei Technologies Pvt Ltd but the device does not create any entry in /dev/ttyUSB* am i missing something?
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Jan 24, 2011
Just installed kubuntu 10.10 on a dual boot with winxp on my asus r101 netbook.
wireless connects perfectly, but after roughly 30 seconds, i cant access any address or ping an url or ip. however network manager says im still connected. so i click on network manager, and click on the wireless connection, it then reconnects in a couple of seconds, and all is good again. i carry on browsing, and 30 seconds later the same happens again!!!
my wireless signal is fairly week, however connection works everytime and in xp this is not an issue.
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Jun 15, 2010
Currently, my partitions are set up as such:
83GB ext3 free space
~10GB ntfs HP/Vista Recovery Partition
~93GB Ubuntu (Hardy Heron)
I tried to just have two partitions (recovery and ubuntu), but because of the different file systems, and the placement of the hp recovery partition, it has to be right in the middle. This is basically what I want to do:
1) Reinstall Hardy Heron on a new (smaller) partition from the free space partition.
2) Once it's working properly, format the rest of the hard drive (getting rid of the recovery partition) and create a single ext3 partition.
3) Install another distro on this new partition.
Does anyone foresee any complications with all this slicing and dicing of my hard drive for which I should/could prepare?
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May 7, 2010
I was having trouble with my wireless connection, it was dropping every 5 minutes or so after upgrading to 10.04 and ran across a thread where someone recommended entering
Code:
sudo apt-get install linux-backports-modules-wireless-lucid-generic
After entering the command I have lost all ability to even use my wireless ability even if it was for 5 minutes. Now I am using a different kernel, internet still drops every 5 minutes, but would love to get my internet up and running again.
I am using a Dell Studio XPS Laptop
Code:
*-network
description: Ethernet interface
product: MCP79 Ethernet
[Code]....
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Nov 4, 2010
My wireless connection keeps dropping is very unstable, signal strength goes up and down here is the info i got from the terminal
*-network:0
description: Ethernet interface
product: 82801DB PRO/100 VE (MOB) Ethernet Controller
vendor: Intel Corporation
[Code]....
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Feb 8, 2011
I'm using an Acer Aspire 3000 since Opensuse 9.3. Wireless connection was fine with ndiswrapper. I upgraded to 10.0 and wireless was perfect with the broadcom firmware. Now I just installed openSUSE 11.3 and my wireless connection became a nightmare: connection drops multiple times in a day and network manager remains stuck in "Interface Configuration". Sometimes I'm asked for the wpa password but Network Manager is unable to reconnect until I disable and re-enable my wlan card using the killswitch. The access point is the same zyxel b+g I own since 5 years! I just bought a new eeepc and I installed on it openSUSE 11.3 too. The network connection behaves the same!! The Network Manager says "Interface configuration" and I must switch the wireless off and on to have the network back. I made a radio scan and I'm using a channel on my own. I also tried to disable dhcp without success.
ACER
# uname -a
2.6.34.7-0.7-desktop #1 SMP PREEMPT 2010-12-13 11:13:53 +0100 i686 athlon i386 GNU/Linux
# lspci -vvvnn
00:0b.0 Network controller [0280]: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller [14e4:4318] (rev 02)
Subsystem: AMBIT Microsystem Corp. TravelMate 2410 [1468:0312]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin A routed to IRQ 17
Region 0: Memory at e2000000 (32-bit, non-prefetchable) [size=8K]
Kernel driver in use: b43-pci-bridge .....
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Jan 28, 2011
I am having an issue with my wireless connection dropping about every 2 minutes (web pages timing out), then working for a couple of minutes then dropping again. The connection icon in the task bar says I'm still connected at about 70%.I have a dual boot system and the wireless works fine in opensuse but not in Ubuntu 10.10 I have an Asus G50vt-X5 laptop but I am not sure about the wireless chipset.
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Feb 20, 2010
I have a windows installation (partition) but have installed into freespace on the same drive using the auto-partition manager, etc, and everything is fine. I got my network going fairly easily by going Preferences > Wireless and inputting SSID and WPA encryption key (PSK). My router issues an WLAN IP, I can get on the net, I can see my other Windows PCs on the network, I can reach my router, and all is good.So after several hours of mooching about and looking at things, I have updated all the Linux packages via Synaptics (following a prompt to update everything) including GRUB. My dual boot now shows two versions of the OS:
GRUB 1.7~Beta4
Ubuntu, Linux 2.6.31-19 - generic (I am booting this one)
Ubuntu, Linux 2.6.31-14 - generic
I also set up my HP F4580 printer over wifi on the network though with slightly incorrect drivers (for the F4400 series as this was recommended at the closest match). It works, and I can print a test page no problem.The only thing is that now (since doing all that) Ubuntu seems to periodically drop my connection to the network and then request the network PSK again, but when I enter it, it spends time trying to renegotiate but fails, and then re-requests the PSK, over and over and it never reconnects. I have to reboot and then I can connect again (automatically), until it drops at some random point (like 5 or 10 mins later)
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Sep 11, 2010
I set up the web/backup server for our department and I'm having some major issues. Firstly, the server seems to be dropping the network connection periodically. I checked all of the logs and it appeared to be an IP6 issue as the only message that seemed to correlate with it was "eth0: no IPv6 routers present" in syslog. I added "ipv6.disable=1" to my boot options in menu.lst and this seemed to take care of the problem. However, I woke up this morning and the server was back down.
This didn't seem to take care of the problem. It seems to occur when my automatic backup scripts go through. I have several BASH backup scripts that use rysnc over SSH to backup several computers to the server and the server to my desktop at home. I was able to trigger the problem a couple of times running the backup script this morning. Now, I'm getting the following error when running the script, instead of losing the network connection:
Code:
Sep 11 10:22:40 chemistry kernel: [ 396.892699] BUG: unable to handle kernel NULL pointer dereference at 0000000000000118
Sep 11 10:22:40 chemistry kernel: [ 396.892715] IP: [<ffffffff811426c0>] __dentry_open+0x240/0x370
Sep 11 10:22:40 chemistry kernel: [ 396.892728] PGD 1113d5067 PUD 11458c067 PMD 0
Sep 11 10:22:40 chemistry kernel: [ 396.892737] Oops: 0000 [#1] SMP
Sep 11 10:22:40 chemistry kernel: [ 396.892743] last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
Sep 11 10:22:40 chemistry kernel: [ 396.892750] CPU 1 .....
I tried booting with a previous kernel to see if that was the problem and I'm still getting this error. I've searched through all of the logs that I could think of to try to track down any software based problems and I just don't see anything. In the past, whenever I've run into such serious with a Linux box that popped up out of nowhere, it's always been a hardware failure. I've currently disabled all of the backup scripts and I'm going to see if it lasts through the weekend.
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Jan 20, 2010
as the titles states my wireless is dropping out but the networks manager is still saying i have a connection. the only way i have been able to be on the network every minute or so i have to manauly disconnect and reconnect to my wifi. under my windows 7 and vista installs the wireless card works fine now my card is a dlink dwa-547 and it uses the arthores chipset, it is encprtyed wifi, wpa2 aes on a n/g based network
Code:
peter@ubuntu:~$ sudo lshw -C network
*-network
description: Wireless interface
product: AR5008 Wireless Network Adapter
[Code]....
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Oct 27, 2010
I have a Thinkpad W500 with:
Code:
Network controller: Intel Corporation Wireless WiFi Link 5300
I have Ubuntu 10.04 32bit installed:
Code:
Linux dani-laptop 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686 GNU/Linux
It has been working fine since I installed 10.04 but recently (end of last week I think) it stared dropping the wireless connection very often. So it will disconnect and reconnect, but I can't seem to find a pattern, sometimes it goes for hours without an issue and sometimes it does it several times in a row. Below is an extract of syslogs from when this happens. But not sure if what I need is there... the only weird thing I can see is:
Code:
Oct 27 18:58:33 username-laptop wpa_supplicant[1296]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
Code:
Oct 27 18:58:32 username-laptop wpa_supplicant[1296]: Trying to associate with 00:1e:be:a6:c0:0f (SSID='accessp' freq=5280 MHz)
Oct 27 18:58:32 username-laptop NetworkManager: <info> (wlan0): supplicant connection state: completed -> associating
Oct 27 18:58:32 username-laptop kernel: [123835.372217] wlan0: deauthenticating from 00:1e:7a:6f:d9:90 by local choice (reason=3) .....
Oct 27 18:59:29 username-laptop ntpdate[4765]: no server suitable for synchronization found
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Mar 21, 2010
Toshiba A215 laptop
Driver is rtl8187
I really need to make the connection constant and non-dropping. I've had opensuse 11.2 since march 7 2010, figured out most of it by lurking and reading threads didn't want to make threads but I really don't know what to do to make this connection stay on. I am posting Terminal commands from when I am both on and offline.
How I attempted to fix this issue myself: I downloaded wireshark, wicd,knetworkmanager. Tried running all of them nothing worked. I went into Yast and switched off networkmanager and went traditional still nothing. Tried adding opendns to traditional. nothing. Went back to NM would get online then after an unknown time I'd lose connection even though NM said i was still connected. Offline running terminal commands from what I read on here in other threads and stickies
:~> ping -c 5 66.70.73.150
PING 66.70.73.150 (66.70.73.150) 56(84) bytes of data.
From 192.168.1.28 icmp_seq=2 Destination Host Unreachable
From 192.168.1.28 icmp_seq=3 Destination Host Unreachable
--- 66.70.73.150 ping statistics ---
5 packets transmitted, 0 received, +2 errors, 100% packet loss, time 4000ms
, pipe 2
:~> /usr/sbin/iwconfig wlan0 | grep Mb
Bit Rate=11 Mb/s Tx-Power=20 dBm
:~> sudo /usr/sbin/iwconfig wlan0 rate 24M
:~> /sbin/lspci -v
00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge
Subsystem: Toshiba America Info Systems Device ff10
Flags: bus master, 66MHz, medium devsel, latency 64 .....
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Aug 8, 2011
Sorry if this has already been solved;answered anywhere else - I tried looking it up but to no avail. The problem persists & the hints I found around the forum did not provide a solution to the case, neither other net solutions i looked up I run Winblows at the lab and sometimes take my Ubuntu PC with me. There is an open Wireless network where they set MAC permission, and there's no pwd to access. It so should be fairly easy to change m MAC and access it, right! No. I run ifconfig and macchange, successfully change my MAC addr BUT the connection drops! Then if I change it back (MAC to my original address) it goes back online. And yes, I shut down the service -- "ifconfig wlan0 down" and then up..WHAT ON EARTH am I doing wrong??? No webpages touch this 'trouble-frigging-shooting instance!
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Jan 5, 2010
In summary, I am using openSUSE 11.2 x64 on an Acer laptop with a wireless AR928X card. I can connect to my WEP-secured network when I boot up. After some time (it might be minutes, it might be hours), I am prompted for my WEP password again. This never works, despite being the one which gets me on-line at start-up!. The only solution is a reboot. The problem is intermittent and doesn't seem to depend on my on-line activity. I have tried the following with the same result:
KNetworkManager
Traditional using IFUP
Enabling / disabling IPv6 support
I tried installing the compat-wireless package through YaST and then managed to get no internet connection at all. Went back to KNetworkManager and things "worked" again until I was prompted for the WEP code. I have openSUSE 11.2 x64 working on my office laptop without problem and can connect to my home network without any problem. My issues are with my personal laptop. I have reached the stage of booting into Windows 7 as my default option so that I can access the internet reliably. What I can do to diagnose and repair the problem - could it be that the card is going into powersave mode? If so, how do I stop that happening? I'd prefer to be on openSUSE but need to be able to rely on the internet.
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Mar 12, 2011
Using Wicd and it keeps dropping out or telling me "bad password" when the password is in fact correct. I even know it works because the first couple of times it worked, but the connection wasn't sustained for more than a few seconds each time. My reasoning is my wireless is functional in Ubuntu, there's no reason it shouldn't be in Debian. Wireless network card is ASUS PCE-N13. Ralink driver is installed. WPA-supplicant is installed. Gnome Network Manager is also present, though I've heard that it doesn't support my particular situation.
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