Software :: Internet Connection - Fluent Under Debian Connects And Disconnects Repeatedly At Short Amounts Of Time
Aug 2, 2010
Though under Windows my Internet connection works fine and fluent under Debian linux it connects and disconnects repeatedly at short amounts of time. It didn't used to be like that but at a certain time i was forced to install pppoeconf to get my DSL internet connection going, after that even if i've uninstall pppoeconf and now i'm only using nm-applet to monitor my internet connection i still have this annoying problem.
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Dec 31, 2010
I just upgraded to Ubuntu 10.10 because I was facing internet problems with previous Ubuntu 9.04 after I upgraded it with downloaded software. And now, 10.10 connects to wireless, but shows web-page some-times and repeatedly disconnects. Earlier it wasn't reaching Internet at all. Some of the topics here helped a lot. But this intermittent internet seems not going anywhere. Wired Internet connects easily though.
I've tried :-
-disabling ipv6..... first in Firefox, then in Kernel also
-Setting DNS.....System> Preferences> Network Connections
-setting static Ip
The system still gives trouble.
My system is Asus UL20A.
Wireless:-Atheros AR9285
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Aug 28, 2010
I'm running wicd 1.7.0 on Kubuntu 10.04, with an Actiontec DSL wireless router (with an internal dd-wrt "bridged" router as well;Any idea what "magic" those lines are performing and if it's possible to make wicd do it all the time (instead of just the third time)?Very happy to pursue any debugging if anyone has any ideas, as it's pretty annoying to have to wait an extra couple minutes on every boot until connecting.
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Apr 18, 2010
Recently I've installed Ubuntu 9.10. I have DSL connection so, I wrote all details needed. After trying to connect on it, it automatically disconnects and connect auth connection again. I have worked on 9.04 and older versions and used to work very good, also the internet connection, but not in 9.10.
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Aug 23, 2010
I installed Cisco Anyconnect VPN client from the university website, to connect to the VNP. On Windows Vista everything worked fine without problem, while on Kubuntu 10.04 the installation has been OK, but when the client connects, my internet connection drops, so I'm not able to do anything!How should I fix this?I'm currently using an adsl, connecting through pppoeconf.
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Jan 17, 2011
Im having another problem with my wireless in Maverick, Im at my wits end with this thing and dont know what to do next. I followed Dev0's from this thread.And now when ever I start my computer I get a notification that says "Linksys C" connected. Then only a few seconds later it says Disconnected and then from then on every few minutes the Password prompt pops up and then I enter my password and then it just keeps going in that cycle until I click cancel.
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May 12, 2011
Wireless connects fine, then disconnects regularly. I thought it might be an issue with the rt2870sta driver, so I blacklisted it, and it uses rt2800usb now:
Code:
[ 13.625932] rt2870sta: module is from the staging directory, the quality is unknown, you have been warned.
[ 13.633139] usbcore: registered new interface driver rt2870
[Code]...
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Apr 13, 2010
This isn't a problem with the 2.6.26 kernel that I have been using, but it is with newer ones. I want to upgrade to a backports kernel, because there has been a REALLY long standing 2.6.26 bug with cpu frequency governors and suspending that is never going to get fixed.
Basically, with the 2.6.30 backports kernel, the hard drive spindown time is way too short. I'd like it to spin down after a minute or two of inactivity, but it is spinning down after only 5-10 seconds. Is there any way to fix this? edit: Now that I think about it, this is also a problem on another laptop that runs squeeze.
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Jan 10, 2010
Is there any application out there for linux that can notify me of when a new IP address connects or disconnects to my network?
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Dec 17, 2010
I installed Debian Squeeze on my system two days ago, using a wired connection to internet (which worked fine). After that, I had to install the non-free wireless package in order to scan wireless networks. It now works fine, and I can connect and get to internet. But with wired connection, i connect via eth0 and none of my applications work. And they're not in offline mode.Also, i already went here: URL,,, and I checked if that was my case. I tryed what they say several times in some different ways, but I still can't connect. Even more, if I change something like they say, I get "unmanaged device" and I can't even connect to the internet. And the wired connection works, I'm using it right now on my ubuntu 10.10.
If you want more information, I just tried to ping sites like google.com or ......com using network preferences and it does work, it gets 100% of the packages back around 50ms later, so the internet appears to work. Also, when I connect via wireless, everything works perfectly.
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Aug 27, 2015
I've been using Debian for about 6-7 months now. I've had a bit of a major networking problem for the past 4 months or so that I've been trying to fix - specifically, it started when I upgraded to Jessie. I can connect to wifi just fine, and sometimes I can even use the internet for brief periods of time (exceedingly rarely). Then... nothing. No network access, period. I can't ping any outside servers, I can't ping other computers on my network, and I can't even ping my router. Pages I try to load just stay "connecting" for all eternity, network printing fails, and so on.
So after four months of searching online (I've read through way more wireless documentation than I care to say), I finally gave up and admitted that maybe I screwed something up during upgrade to Jessie (as a matter of fact, I did, I had to do the upgrade in two increments [somehow] because my root partition was too tiny by mistake) and I did a clean install. Since I had /home on a separate partition, I was able to keep all my user files, but all settings regarding networking were wiped. So after installing firmware-iwlwifi so I can use my wireless card, I tried connecting to wireless! Success! Then I tried connecting to the internet... success! Briefly. The next morning I tried using the internet again, and it failed in exactly the same pattern as before.
I don't know much about what's going on here, but here's what I do have available:
I do have to use firmware-iwlwifi, which I installed by doing apt-get install firmware-iwlwifi. I don't think it's an issue with the wireless card itself (hardware-wise), the laptop dual-boots Windows 7 (that I never use anymore), and Windows 7 is able to connect to the internet just fine. Connecting directly to my router by ethernet cable works fine, I have perfect internet/network access then.
I can confirm that my laptop is receiving an IP address and that it is using ARP correctly to get the MAC address of my router (I confirmed this by doing the arp command, it has the MAC address correct, I checked from another computer with my router's config page) All other computers on my network work perfectly with my router. To confirm the router/its configuration isn't at fault, I did a full factory reset of the router, but to no avail.
Out of curiosity I tried installing Wireshark (using an ethernet cable to download it) to monitor what happens when I try to access a webpage. I'm no expert on networking, but I noticed something out place when I compare a capture from the affected computer to a capture from one operating normally - there are a lot of STP packets showing up. I did some checking around, it looks like STP is involved in bridging and more complex networking setups (involving switches, for example)... but it shouldn't be found on a home network, especially where there's no bridging whatsoever. These STP packets don't show up on packet captures done from any other computer. I've attached a packet capture from the affected computer here, since the forums won't let me attach a .pcapng file.
Here's the output from a few commands I ran during past troubleshooting sessions:
Code: Select allsudo ifconfig
eth0 Link encap:Ethernet HWaddr e0:db:55:b5:fe:06
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:12455 errors:0 dropped:0 overruns:0 frame:0
TX packets:7781 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
[Code] ....
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Apr 15, 2010
I'm just wondering what the limits for time are. I have a program that always takes exactly 20 ms, so I assume this is the lowest it can measure, but I want to see if there's some sort of documentation of this.
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Mar 24, 2010
The issue I am currently facing is more of an annoyance / curiosity, and it may not even be a problem, but it sure feels like one. Background: I am becoming a computational chemist (grad school begins in the fall) and the code I run is all in fortran. I am currently compiling with gfortran. When I compile the code (on a box running ubuntu server), everything appears to compile fine, but the linking stage is taking five to ten minutes. I ran the time command while making it and got the following results.
Quote:
time make
gfortran -c -O3 -fomit-frame-pointer -finline-functions -ffast-math suijtab.f
Linking testCompile ...
done
[code]...
I just don't understand why it is taking 5 minutes of real time if it only takes 10 - 15 sec of system time?
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Apr 22, 2010
Since the upgrade from Lenny to Squeeze on my Notebook Toshiba Satellite Pro U200 with Intel Pro/Wireless 3945 ABG I have wireless connection problems.The connection breaks time to time and sometimes cannot connect automaticaly after restart. BTW I didn't change anything on the wireless or network configurations on the notebook and on the wiereless router.
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Feb 22, 2011
I am having some trouble with my opensuse 11.3 internet connection for two weeks. After a certain period connection drops while using both NetworkManager and ifup. For info, I write the outputs of some codes.
[Code]...
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Jun 13, 2010
how to make dsl setup and to acess both wireless and wired at a time.
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Apr 23, 2010
I could not find an answer to this. I can connect to the internet no problem after I edit the connection name to NETGEAR instead of our last name. After a while it looks like it renews the connection and created a new one with the wrong name. The connection drops. It looks to me it is not using the same wireless connection each time but creating new ones that do not work for the above mentioned reason. What can I do to stop the loop and have it use the same connection always?
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Nov 1, 2010
I did a clean install of 10.10 just under a week ago and something is really wrong with my wired connection. I keep loosing all connectivity and have to connect again from the panel app. After that, every thing works again for about 30 to 60 seconds and the the connection goes again. No lost connection notification pop up or anything like that, but i cannot browse the web or download upgrades while the connection is gone.
Then the really weird part. Sometimes my connection works just fine. On some boots everything is fine for a long time (hours?) but then the problem comes back. My network card is an Intel 82567LF-2 and it uses the e1000e kernel module. I dual boot to Windows Server 2008 R2 and there I have full connectivity all the time.
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Sep 26, 2010
Having just installed OpenSuse 11.3, NetworkManager identifies my wireless network, but repeatedly fails to make a connection. Without further ado, here are the outputs to commands requested in the first sticky thread:
[Code]....
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May 30, 2011
I have recently upgraded to 11.4 and also had to renew an AP (HP ProCurve 10ag). This was several years old but replaced an identical model which had been working well until recently. I thought it would be appropriate to flash newer firmware as the device four releases behind the times. The access point serves partner's XP laptop and my openSUSE 11.4 laptop and after flashing the firmware both machines would make a connection and then break and remake, to the extent that the openSUSE machine became unusable. I thought it was an encryption problem and spent hours changing the AP and Client setups to no avail
After reading a thread here I checked out dmesg and this is what I found:-
[78.639247] wlan0: authenticate with 00:1d:b3:4b:ae:14 (try 1)
[78.640804] wlan0: authenticated
[78.642507] wlan0: associate with 00:1d:b3:4b:ae:14 (try 1)
[78.651195] wlan0: RX AssocResp from 00:1d:b3:4b:ae:14 (capab=0x411 status=0 aid=1)
[78.651200] wlan0: associated
[78.652222] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[78.652283] cfg80211: Calling CRDA for country: DE
[78.674378] cfg80211: Regulatory domain changed to country: DE .....
This went on and on.
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Apr 15, 2011
1 linksys router: gets the net from PPPOE and give the network DHCP. The router IP is 192.168.1.1. 1 windows laptop that work wireless and wired. 1 debian desktop that work wired and not working wireless. THe problem with the debian desktop is like this: I have a TP-Link TL-WN321G installed and found by lsusb command. I make a wireless connection WPA Personal (just like the router settings) it says i am connected to the wl network but no internet connection. the route command give me this:
[code]....
I tryed with wicd who said that the connection is WEP (and it's not, it is setup to WPA on the router and the network-manager conncetion) and when i try to connect i get bad password. I tryed with network-manager uninstalled and no chance.
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Aug 11, 2010
I installed network-manager-vpnc, configured cisco vpn through NetworkManager. It works slow, but the bigger problem is that after minute or so the connection just freezes.Then I tried kvpnc. It works like it should from speed point of view. But it also hangs up after minute or two.Tried to change MTU of my wired connection to 1500 - no good.Tried to uncomment line in /etc/ppp/options "mru 542" - no good.
Created /var/run/vpnc because it was giving some error "can't open pidfile /var/run/vpnc/pid for writing".From logs everything seems fine except for "nm-dispatcher.action:Script '/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1." in last line. If I use kvpnc it gives no errors.SO, how do I debug this thing or does anyone knows something I don't in this case?
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Nov 12, 2010
I have installed ubuntu 10.10 for a short time, now I meet a problem:I always leave for lunch and leave my computer without turning off. When I get back, it shows a window. after I input my password, I enter my system.Then It halts, the only thing what I can do is moving mouse. After halting for nearly one minute, it resumes to normal.I hope someone can tell me what happens.
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Jun 15, 2010
I am wondering if pthread could make that a single thread keeps the "mutex" all the time if the time it remains unlocked is very small.
thread1
{
while (1)
{
lock; do_task(); unlock();
[code]...
I experiment the thread2 never getting access to the mutex and never printing the nice message. I would expect that once thread2 calls "lock", it would get the mutex as soon as thread1 calls unlock() but it does not seem to be the case. If I add a sleep of some microseconds (100) in thread1 after unlocking the mutex, it solves the problem.
Does anyone know if this behaviour is normal? Is there a way to configure my mutex so that thread2 receives it when unlocked?I use
pthread_mutexattr_settype(&att, PTHREAD_MUTEX_RECURSIVE_NP);
pthread_mutex_init(&handle, &att);
to create my mutex. I am running ubuntu 9.04
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Apr 1, 2011
I believe I'm running Kubuntu 10.04, but don't quote me on that. Here's the version string from dmesg. Linux version 2.6.32-31-generic (buildd@crested) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #60-Ubuntu SMP Thu Mar 17 22:15:39 UTC 2011 (Ubuntu 2.6.32-31.60-generic 2.6.32.32+drm33.14 I have an emergent problem with my wired ethernet resetting the connection on a frequent basis. When it resets it re-negotiates the link speed and I often end up with a 10Mb/s link and on some occasions a 100Mb/s. The configured speed for the link is 1000Mb/s full duplex using a preup ethtool command. I do not use NetworkManager but have the interface configured in /etc/network/interfaces.
[code]....
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Feb 14, 2010
I think this might be related to the changes to using udev or DeviceKit. It started when I was running the beta versions of F12. Then it crept into Debian Sid. And my Arch Testing and Gentoo also suffer from the same.
What happens is that I'll be working along. Then when I press any key it is as if the SHIFT key is pressed. When I press CAPSLOCK, some of the keys react as they would normally. This never lasts for more than 5 minutes. And seems to happen infrequently. I say seems because there are the times I am at work and it could be that the same thing is happening only there is no one on the keyboard.
The reason I pick out udev/DeviceKit is that when it used to happen to F12 beta, the other distros had not yet made the move. So back then it was only a F12 issue. Now it is happening across the board. And only started recently.
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Jun 10, 2010
I am backing up data from a remote server onto a local ntfs partition. It seems that the rm -rf and cp -a commands are taking a long time to complete in what should be short, incremental backups.Has anyone had similar problems when backing up to an ntfs partitionHere is my rsnapshot.conf:
Code:
#################################################
# rsnapshot.conf - rsnapshot configuration file #
[code]....
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Aug 5, 2010
I've just installed Ubuntu on a new netbook, getting rid of windows in the process. I had tried it on another computer, installing it alongside Windows, and liked it enough to want to install it fully on my new netbook. I followed instructions, downloaded it to a USB stick, and then installed it as per the instructions on the Ubuntu website. All seemed fine until I tried to connect to my wireless network, when it appears there is no wireless driver. I tried plugging in the ethernet cable, but it just disconnects me every time I try to go online.
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Apr 9, 2010
I updated Fedora 9 yesterday. I rebooted earlier and now the desktop starts for a very short time then disappears followed by a window opening and closing for a few goes. After this nothing! YUM does not work, neither does Firefox! A bug report informed me there was a Python problem but I can find no reference to this anywhere.
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Sep 29, 2010
we got our apache server (running opensuse 11.2) hacked yesterday and I see doing a lsof -i that a bash command using account wwwrun connects all the time to a botnet [URL] and even if I kill it, it reconnects again and again. I've clean the /tmp folder, I've check the crontab but I can't find it.
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