Ubuntu Networking :: WIRED Lan Dropping Randomly In 10.10 / Stop It To Do So?

Dec 27, 2010

Lspci:
05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 12)

My wired LAN keeps dropping randomly, average of every 30-60 minutes. Fresh install of 10.10 from iso, Been installed for about 4 days now, just performed system update today, no change.

My router actually completely resets itself. You can watch the lights power off and recycle doing their POST. Absolutely no problems in windows 7 dual boot configuration.

I am no downloading anything, not streaming, not doing anything actually. My computer is completely idle (save for BOINC) and all of a sudden my phone loses the wireless connection which lets me know that my router just reset.

Ubuntu is actually doing this, my wireless stays up indefinitely in windows. Once the router resets, it does automatically reconnect without a PC reboot, but why is it resetting my router?

If you need the bootscript, already posted here: http://ubuntuforums.org/showthread.php?t=1651262

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Ubuntu Networking :: Internet Keeps Dropping Randomly?

Jan 4, 2010

I'm using Ubuntu 9.04 64 bit on an Asus laptop and the wireless connection disconnects randomly for a while and keeps searching for the signal. When it finds it I have to put in my WEP key again to get it to connect sometimes only once or sometimes 2 or 3 times. This is getting quite annoying.

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Ubuntu Networking :: 9.10 Dropping Network Connection Randomly?

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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Ubuntu Networking :: Eth0 And Eth1 Randomly Dropping For 30sec Or More

Sep 1, 2011

Once or twice an hour or every few hours the interface will drop off. When this happens and comes back up and ssh sessions I have open will sit there and lag for 15-20 sec while, I assume, the connection is re-established. Any sessions I have open to the mySQL database will be dropped and I'll be given error messages associated with loosing connection to the SQL server. I have run a constant ping against the server and when the interface seems to drop off I'll get 10 or so host unreachable and it'll then start to reply again. This happens with both eth0 and eth1 on this Dell Poweredge 850 running 11.04. I have done a "sudo lspci -v" on both the server acting up and another Natty box that doesn't have this issue but the same hardware. They both are using the same driver versions though it seems certain options are slightly different between the two.

Working Server:
Code:
04:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11)
Subsystem: Dell Device 01b6
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fe8f0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at <ignored> [disabled]
Capabilities: [48] Power Management version 2
Capabilities: [50] Vital Product Data <?>
Capabilities: [58] Message Signalled Interrupts:Mask-64bit+ Queue=0/3 Enable-
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting <?>
Capabilities: [13c] Virtual Channel <?>
Kernel driver in use: tg3
Kernel modules: tg3

Broken Server:
Code:
04:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11)
Subsystem: Dell Device 01b6
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at fe8f0000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at <ignored> [disabled]
Capabilities: [48] Power Management version 2
Capabilities: [50] Vital Product Data
Capabilities: [58] MSI: Enable- Count=1/8 Maskable-64bit+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [13c] Virtual Channel
Kernel driver in use: tg3
Kernel modules: tg3

I've checked the cable, it's a pre-made with both ends looking good. I even swapped it out for a fresh home made cable and the problem still persists.

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Ubuntu Networking :: Wired Connection Keeps Dropping Out / Resolve It?

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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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 :: Wired Connection Stop Working?

Oct 25, 2010

Ubuntu 9.10. Everything works fine until yesterday when I cannot connect to network. My lan card is Realtek PCI and is present on system (i can read mac address and all settings). In connection manager I was try to set everything manually (IP, netmask, gateway and DNS) or leave automatic - without success. I am connected to router. I don't want to feed "log-hungry" people because how to resolve ubuntu lan problem can help me (not someone who will want to try). I cannot connect manually because there is no option when I click on network icon (I can just uncheck connection, but that's all). I can't even access to my router (from computer with Ubuntu, because I can access from another computer). All logs shows lan card proper. Windows XP on the same computer booted from another HDD works fine.

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General :: Ubuntu Box Keeps Dropping Wired Network Connection?

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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Ubuntu Networking :: WiFi Dropping And Dropping Speed

Feb 25, 2010

As soon as i'm starting to copy a large file enough file (>700Mb) to my ubuntu box (connected to an Asus router via wifi) from a Windows 7 client (connected to router via ethernet cable) i get a dramatic drop in speed. upload starts at 1,0Mb/sec with a ping to ubuntu box at <1ms, and in 2 minutes it drops to 200kb/sec with a ping of over 1000ms! The ping increases with every second in a linear progression.

To exlude router as a possible problem copying to a windows 7 notebook connected to router via wifi results in an average of 2,7Mb/sec with an average ping of 150ms.

MB Model: Asus P5B Deluxe wifi
OS: Ubuntu Server 9.10 + desktop installed
Wifi configured via GUI

2. lsusb

3. wlan0

4. lsmod

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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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Ubuntu Networking :: Broadcom Corporation NetXtreme BCM5721 Network Card Randomly The Network Connection On The Server Will Stop Working?

Jan 29, 2011

I have a Broadcom Corporation NetXtreme BCM5721 network card on my server at work.Everything works fine for a few weeks, then randomly the network connection on the server will stop working. After it stops working, I will try to reconnect with the network manager, it shows a wired connection available, it shows the "connection in progress"animation, then the "connection disabled" icon.

I uninstalled the network manager and used manual configuration, but do you think the network manager was the issue? I can't have the server disconnecting randomly every few weeks with no way to know what the real problem is. Was there an issue with the network manager with 10.04?

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May 15, 2011

I am running Ubuntu 10.10 on a brand new laptop, an install done by the company I ordered the notebook from. I have some limited experience with Linux and Ubuntu especially.I know that I'm not connected to a wired network. I haven't so much as plugged in a network cable, but the graphic appears erratically on the right hand side of the screen like I am connecting, then disconnecting. I've tried disabling the eth0 connection altogether, but no dice. I can't figure out how to make it stop.

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Ubuntu :: Quicksynergy And Synergy Randomly Stop Working?

Jun 3, 2010

I'm using Quicksynergy on my desktop (Ubuntu 10.04) computer as the server and Synergy on my Laptop (Windows XP) which is right beside my desktop.Everything works well for a while, but randomly seems to stop working. When I look into the problem, it seems that its with Quicksynergy on my desktop.I find that I have to quit Quicksynergy and open the system resources application to kill the Synergy daemon (or whatever it is) that Quicksynergy uses.Restarting Quicksynergy after killing the daemon fixes the problem as my laptop always reconnects perfectly fine.Does anyone else have this problem in Ubuntu? I'd like to get this fixed so I don't have to keep killing the synergy process and restarting Synergy.

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Nov 3, 2010

It bounces on and off. No pattern, but mostly off. I have ran it off a live cd and off the hard drive, multiple live cd's and versions of ubuntu. Even a usb mouse does the same thing

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Ubuntu :: Programs Randomly And Frequently Stop Responding?

Mar 19, 2011

programs (especially Firefox, though I haven't used other programs much) stop responding rather frequently without warning and after some time they just start responding again. Apt-get also takes ages to unpack stuff when I'm upgrading/installing something, that might be related. According to top there is barely any cpu usage at all during these freezes. I had this issue on a stock Lucid install. When Maverick came out, I tried that one, and the issue still existed. On a fully upgraded Maverick system, it's still there as well. Windows works without a hitch, as does Ubuntu running under a VM on windows.

System specs:

CPU: Phenom 2 x4 945 @ 3 GHz
GPU: Radeon HD 5770 with fglrx
4 GB of ddr3 ram
Motherboard: Asus M4A89GTD PRO
Hard drives: 2 WD 1.5 TB drives running on a fakeraid 1 array

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Ubuntu Multimedia :: Volume Levels Jumping Randomly / Stop It?

Jul 7, 2010

I am currently troubled with a very annoying problem - the volume level of the PC is jumping higher and lower at random intervals. It makes listening to music very difficult, as at times the music can go from just right to overly loud, just to fall right down so that it is hard to hear. I've only noticed this problem in the past few weeks, and I can definitely say it wasn't an issue in 9.10. This is a fresh install btw, not an upgrade.

Some details:
Using motherboard sound, Realtek HD Audio, iirc. Below is the output of lshw, with the irrelevant parts cut out.code...

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Ubuntu Installation :: Controller Receiver Stop Working Randomly

Nov 11, 2010

I installed Ubuntu as well but was still using the windows loader. I eventually installed Ubuntu Studio when I got another HDD (which is where I installed it). Don't ask me how I did it. As of now no loader automatically pops up. It acts as if there is nothing to boot from. However I can hit f12 and chose which HDD to boot to. On one it comes up with the Windows loader w/ Vista and Ubuntu. I can chose Vista and it works just fine. However if I chose Ubuntu it starts going a lil nuts and restarts. If I chose the other HDD it boots up Grub w/ options of Ubuntu and Ubuntu Studio. Studio works (which I'm currently on) and pretty much the same thing happens as before when I chose Ubuntu. So if the 2 OS's that I need work (Only really use windows for games) then what is the problem? I know its a little bit annoying trying to remember to hit f12 and having to chose your OS again after that (and of course the extremely annoying vista startup times). Some other things in both Studio and Vista don't want to work like they should. This is about the only thing left that I could think of that may have something to do with it. My wireless card+an old wireless card I found won't work w/ either.

Yet they both work on other computers running Vista and/or Ubuntu (not studio). I seem to always keep having display problems on both as well (dual monitors and graphics both). Even on studio I have to restart it sometimes to even get it to let me go fix it. My wireless controller receiver (for games) will stop working randomly and need to be unplugged and plugged back in. I also have problems with Studio recognizing SD cards and DVD/CD's. I am not sure much of anything can be done aside from wipe and fresh install on both. Bad thing is I don't have my other computer with me and can't afford to buy a 1TB HDD right now.

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Ubuntu :: 10.10 Freezes Randomly - Keyboard And Mouse Stop Responding

Feb 4, 2011

I have installed Ubuntu 10.10 on other machines before and have not experienced this problem. Occasionally, the system will lock up. They keyboard and mouse stop responding (my keyboard status lights no longer respond, but my optical mouse light is still on). I can ssh to the machine, and it seems to work as normal. I kill processes that are open on my desktop through ssh, (i.e., Firefox), and I notice when I switch back, I still have the same frozen image on my screen. I have looked at the following files to determine any issues with the GPU:

[Code]...

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Software :: USB Keyboard And Mouse Randomly Stop Working In Fedora 12?

Jun 17, 2010

I'm running Fedora 12 on a Shuttle SN78SH7. Updates are all current from the Fedora repositories. I'm using the Nouveau driver for the Shuttle's on-board Nvidia graphics adapter. At random intervals (1 to 5 times per day), my USB keyboard and the buttons on my USB mouse stop working and the desktop freezes (i.e. GKrellm graphical data stops updating, partially painted windows don't complete). However, I can still move the mouse pointer around the desktop. This only seems to happen when I am actually using the computer from the console. It has never happened while the system was turned on, but not being used.

When the mouse and keyboard stop working, I can log in from another computer via ssh. Once the computer gets in this state, the only way to fix things is either to reboot remotely using ssh or to cycle power. I've run low level hardware diagnostics - everything checks out OK. This computer only has USB and firewire inputs. No PS2 jacks.

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Ubuntu :: Constant Freezing - Runs Fine For About 3 Hours Then It Will Randomly Stop Working - Screen Goes White

Aug 7, 2010

I am running Ubuntu 10.04 on an AMD64 computer with an ATI Raedon x1250 graphics card.

Everything runs fine for about 3 hours, then it will randomly stop working.

Symptoms:
Mouse stops moving for 10 seconds.
Screen goes white.
Speakers start repeating last 10 seconds of whatever was playing.
Screen goes orange or purple with lines across it and random symbols...

At that point I hardware restart my computer and all is fine again

dmesg yields the following after every crash

Quote:

Quote:

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Ubuntu Installation :: Karmic Koala - Slow Jerky And Has Odd Freezes Like Windows - Applications Randomly Stop Working

Nov 7, 2010

I had been happily on Jaunty Jackalope until they stopped supporting it so I took the forced upgrade and it's HORRIBLE!

I feel like I'm back in Windows land. Within an hour of my first load I had my very first Ubuntu total-lockup. Just like Windows. In the 18 months I'd been using Jackalope I had not had a single crash. Not one.

It's slow, jerky, and has odd freezes. Just like Windows. Applications randomly stop working and die. Just like Windows.

Is there any way to fall back to Jackalope or is there any hope of them fixing Koala? 'Cause this is wretched.

I see there's another version out there...10.04.01.LTS. I'll try that. It can't be much worse.

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Oct 27, 2010

I want my netbook to connect automatically to both the office wired/static network and to the usual wired/DHCP networks.

wicd is wicked but netsearching hasn't revealed how to configure it for both wired/static and wired/DHCP except by manually switching profiles.

wicd's profiles can use pre/post(dis)connect scripts but I don't know how to integrate them into wicd when they are upping/downing connections on cable (un)plugging.

If it is not practical to solve this within wicd, I'll explore standalone scripts to configure eth0 on cable (un)plugging, as detected by ifplugd.

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May 25, 2010

I have Debian Squeeze AMD64 bit release. It finds my wired ethernet connection and ues itfine, although nothing shows up in the top right corner under the networking icon.

When I plug my mobile phone in (HTC S620) it always uses this as the main internet connection and then even if disconnected wont use my wired connection until I reboot.

Is there a way to stop it doing this or at least have my wired connction as an option so I can just click to reconnect to my ethernet connection?

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Ubuntu Networking :: Network Connections Keep Dropping?

Jan 30, 2010

Here is the layout of my network:My cable modem plugs into eth0 on my ubuntu server which acts as a firewall (shorewall) and dhcp server to my lan. A dd-wrt access point is plugged into eth1 and then a bridge connecting my xbox360 and another bridge connecting a desktop computer.Everything works pretty well, except a few times a day, my network will just shut down. The wireless on my macbook and my wife's laptop will just shut down, and if my xbox is running, it will lose connectivity. It will be down for maybe a minute or two, and then come back up like nothing ever happened.I never had this problem when I had just a dd-wrt router running everything instead of my server.When I ssh into my server afterwards and run dmesg, this is what I will get:

Code:
[398598.251548] martian source 169.254.1.255 from 169.254.1.33, on dev eth1
[398598.251565] ll header: ff:ff:ff:ff:ff:ff:00:23:69:3d:b1:82:08:00

[code]....

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Ubuntu Networking :: Wireless Internet Dropping Out?

Feb 17, 2010

This is weird. I will be working on the internet with several tabs open and all of a sudden the pages won't update. I can't go anywhere - it's like I lost the connection. I am also downloading bittorrents with uTorrent running with WIne and that doesn't seem to be affected. I also have gPodder and I tried to update podcasts with that and it also hangs up as if it can't connect. The only way I have been able to solve this has been to reboot (which I just did).

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Ubuntu Networking :: Wireless Dropping But Not Windows?

Feb 25, 2010

Having major wireless issues with Linux. I have DSL and had a Westell router/modem combo and my wireless would stay up for no more than 15 mins at a time even while idle, and in order to get wireless back I have to reboot and then I can get another 5-15 mins of wireless before it drops. When it drops it prompts me for my wep key and wont accept it yet if I reboot it catches the wireless right away for a very short period. So I go out today and spend over $100 bucks on a Netgear dgn2000 thinking it would fix the problem... Nope I am still in the same boat as I was with the Westell.

I am not seeing my router model listed under the wiki link sticky.. (Edit) thought I installed ndiswrapper, it was it was in my downloads anyway I can't install it I get the following error (Not a valid driver .inf file.)I have tried 3 distros and have the same problem. I went to Netgears site in search of Linux drivers but all I found was the firmware updates. Could some one please shed some light on what I need to do to get up and running?This is a new laptop and I am pretty annoyed with myself for formatting it out of the box rather than reading up a bit more about Linux (been using for one month).I don't understand it Ubuntu 10.9 ran wireless perfect on my older system, (full install) and I have no trouble with my lap top that is running Windows.I really hope to get this resolved I really enjoy Linux and I don't want this to be the one handicap which would force me back to Windows, that would be very upsetting

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May 10, 2010

Lately I have been using my window's partition due to the fact that 10.04 drops my wireless signal every 5-10 minutes, but today I downloaded the new updates and that seems to have fix the issue with the dropping of the wireless connection. Now the only problem is the internet is so slow when trying to go to webpages it times out. I have opened up firefox gone to about:config and changed the necessary lines, but still dreadfully slow.

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Sep 6, 2010

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Ubuntu Networking :: Wireless Keeps Dropping At School

Oct 5, 2010

I'm running ubuntu 10.04 on my laptop with broadcom BCM4322 wireless card.Basically what keeps happening is my wireless will stop working, then network manager will notify me that I have lost signal. It will then try and reconnect, but it never seems to be successful. The only way I can get the wireless to work again is if I disable wireless then re-enable wireless (or do a complete system restart).

However, it does not seem to have this problem at home. The only difference I can think of from home and school is either encryption types (the university uses WEP, I use WPA) or the fact that at home there is only one access point and at university there are multiple access points all with the same SSID.Anyone have any idea how to make my laptop stop dropping connection all the time?

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Ubuntu Networking :: Wireless Connection Keeps Dropping?

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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