Ubuntu :: Wireless Randomly Drops Connection And Refuses To Reconnect?
Mar 23, 2010
my wireless will connect to a well known connection but will sometimes drop the connection then tries to reconnect. Sometimes it will reconnect w/o a problem but most times it will fail and when it fails it will refuse to even recognize that same wireless connection.
If by a small chance it does recognize the network then when you click on it, it will ask you again for the password, which is already saved onto the computer. After entering the password it will try to reconnect, then fail.
Only solution is to reboot.
I was wondering if there was an easy temporary fix of just reloading the software that controls the wireless.Such as, my audio doesn't work when I boot. I need to reload the ALSA driver using sudo /sbin/alsa force-reload
Is there something specific to the wireless that I can force-reload and it will start working w/o having me reboot my PC?
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Jun 5, 2010
I could not find a solution to this problem anywhere. I use a ubuntu server to play (stream) mp3s and movies to other computers on my network. It works most of the time, but sometimes in the middle of a movie or a song it will drop/hiccup--saying it is "not reachable". I am not overtasking the server at all, and merely playing an mp3 that takes up less than 10% of the bandwidth, yet it drops it for a split second.
I have a WRT160N router (DD-WRT of course) with 4 clients connected (2 of which are wired). The ubuntu server is connected via ethernet and all machines have the same issue. It can't be the router because another Windows machine works just fine for streaming these files. I just can't understand how it can lose connection for a second or so. It may just be the file-system or some service that is hiccuping, but I have no idea...
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Sep 27, 2010
i have dell latitude d830. has anyone else had this problem? it drops and reconnects every 10 minutes or so.
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Nov 20, 2010
My internet connection drops randomly in ubuntu but works fine in XP.The connection is not disconnected but i cant browse any sites,so what i do is i will reboot my system so that i can surf again but after few minutes the same problem is happening again
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Sep 1, 2010
The title pretty much says it all. My eth0 will disconnect at random intervals. lspci:
Code:
...
01:08.0 Ethernet controller: ADMtek NC100 Network Everywhere Fast Ethernet 10/100 (rev 11)
...
And lsmod | grep tulip:
Code:
tulip 50592 0
Ubuntu 10.04 Linux desktop 2.6.32-24-generic #42-Ubuntu SMP Fri Aug 20 14:21:58 UTC 2010 x86_64 GNU/Linux
When it disconnects, it easily reconnects when I disable/enable networking. But until I do.... Update: It disconnected again right after I posted this. Here is what dmesg | grep tulip:
[Code]....
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Sep 6, 2010
I have a hp dv3 2110eg laptop with OpenSuse 11.1 (KDE 3.5.10) and Windows 7 dual boot. My wireless disconnects and connects automatically at random intervals. I do not observe this behaviour when operating my laptop under Windows 7. Following some suggestions given in this forum , I uninstalled networkmanager and installed wicd. However, this does not seem to solve the problem. Given below are the relevant information.
uname -r
Code:
2.6.27.48-0.2-pae
/sbin/lspci
Code:
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
Network Connection
/sbin/lspci -n
Code:
03:00.0 0280: 8086:4237
/sbin/lspci -nnk
Code:
03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
Network Connection [8086:4237]
Kernel driver in use: iwlagn
Kernel modules: iwlagn
dmesg
Code:
iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27ks
iwlagn: Copyright(c) 2003-2008 Intel Corporation
iwlagn 0000:03:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
iwlagn 0000:03:00.0: setting latency timer to 64
iwlagn: Detected Intel Wireless WiFi Link 5100AGN REV=0x54
iwlagn: Tunable channels: 13 802.11bg, 24 802.11a channels
phy0: Selected rate control algorithm 'iwl-agn-rs'
firmware: requesting iwlwifi-5000-1.ucode
The dmesg output shows firmware request (highlighted with red font), but I have already installed the firmware using YAST.
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Mar 24, 2011
I am fairly new to linux. I have Ubuntu 10.10 on my Dell Inspiron E1705. While browsing my internet connection suddenly stops working. It says that I am still connected but the internet doesn't work. When I try to disconnect then reconnect it will not connect to the network. To get it to reconnect i have to turn of the wireless card, delete the connection then restart, turn the card back on and reconnect.
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Sep 8, 2011
I have problem with my wireless GSM connection , my notebook has built-in Toshiba (in fact Ericsson) F5521gw wireless modem , it is detected and usable by default without installing additional software.Problem is that I can connect flawlessly only once after switching on notebookif I disconnect manually I'm not able to connect again, i have to reboot my computer or another solution which allows me to reconnect is closing and opening lid (putting notebook in suspended state)I'm using Toshiba Tecra r850, openSUSE 11.4 x64 on Gnome 2 DE, using NetworkManager and nm-applet /var/log/messages after using disconnect from nm-applet:
Code:
Sep 8 17:04:39 linux-b5nl pppd[9933]: Terminating on signal 15
Sep 8 17:04:39 linux-b5nl pppd[9933]: Connect time 243.2 minutes.
[code]....
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May 17, 2010
I have an Acer Aspire One ZG5. 160GB HD, 1GB RAM model. I've done a fresh install and an upgrade of 10.04 and have the same problem both ways. I am able to connect to my wireless connection but it is dropped after about 5 minutes and have to wait about the same time to reconnect. I've had to roll back to 9.10 being that I use the netbook for work and school on a daily basis.
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Jun 13, 2011
Having struggled to get the wireless connection at least working I find it drops out after 15 minutes or so. When I check for wireless connections I can see none at all and the "Disable/Enable wireless conncection" has disappeared, the Network one is still there. I get an auto reconnection if I reboot and all is well for another 15 minutes. Is there any way i can recover the situation without a reboot? I am trying to install the hplip-3.11.5 driver for my new wireless printer,the program take a while to install and by the time it has started looking for the printer the connection has dropped out. I can't be sure but I don't think it was dropping out before I connected the printer using my wired pc. All good fun but I'd like to get it sorted so I can get the engine back in my motorbike, the sort of technology I prefer!
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Jan 22, 2011
I just got a wireless dongle because in my house wired is not possible, but now I am getting problems. The dongle is a tp-link that turned out to be plug&play (unlike windows) and seems to work perfectly, except when the screen locks. I have tried to download overnight several times and it seems like a few minutes after the screensaver comes on or after I lock the screen, the connection is dropped. It works completely fine normally. So what changes when Ubuntu (its maverick with all updates) locks the screen? Also, when I log back in, I have to unplug the dongle and plug it back in to get it to connect again.
This is really REALLY annoying, enough to make me switch back to windows if I can only download while I'm looking at the screen.
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Apr 24, 2011
My wireless connection drops after a while when downloading torrents. I have to reconnect manually. Current configuration is Macbook Pro 5.5 with Broadcom card and Lucid. I've tried with Transmission and KTorrent. It's not a network problem as my Win laptop works smoothly and with higher transfers rates (i.e. 1MB/s in Win vs. 300KB/s at most in Ubuntu).
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Jun 16, 2011
This is a little problem I've been having. My internet connection right now is just my rooted android phone broadcasting a wifi signal. It works like a regular wifi connection. When I connect to it, it works fine. But if it goes for more than a minute without having any data transferred, it drops the connection til I reconnect. I can have it downloading all night and it wont go out once. But soon as I let it alone without any data xfer, its down.
My quick fix is to just keep it pinging [URL] and that mostly keeps the connection going (although it still drops occasionally). Anyone know a more permanent solution?
running Slackware64 13.37 with multilib, and wicd 1.7.0
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Aug 19, 2010
I have Ubuntu command line only installed on my HTPC (it is XBMC Live installation). Kernel is 2.6.31-16-generic. My wi-fi card is AW-NE770 from AzureWave (mini-pci on Zotac Atom motherboard). I have successfully configured wireless connection to my router. Unfortunately, after short period of time connection drops. When I restart /etc/network/interfaces all goes back to normal. When connection is dropped, iwconfig shows that access point is not assigned. I have already tried installing backport drivers, removing security on the network (WEP and WPA), assigning static IP or using DHCP. Nothing works. I know it is not the router or my internet because I can be at the same time on my laptop and that works fine.
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Nov 22, 2010
I've recently installed ubuntu 10.10 32 bit on an external HDD in order to use it as a portable operating system. An issue I have is when running on my laptop (Samsung R580) the wireless connection drops out however the nm-applet still shows it's connected. If I disconnect and reconnect it keeps asking for the access password. The wireless card on the laptop is the RTL8192E (not SE!). I have used the install on a couple of other machines with different wireless cards and no problems. Linux Kernel version is 2.6.35-22-generic. I have searched around and see that the drivers are in early development. If I tried installing the windows driver via ndiswrapper would this affect the portability of the operating system?
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Mar 5, 2010
i installed Opensuse 11.2 recently but the wireless internet wasn't working been searching for few days now and i can't find the solution. it shows my modem, and i can connect to it but for some reason it appears to drop the connection it keeps asking me for my encreption key so btw is one of the first times i worked with linux / opensuse.
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Apr 10, 2010
I have a Dell 1545 laptop with ubuntu 9.1 32-bit installed (the 64-bit had a bug with the wireless drivers which is why I have not used it). Initially, the laptop worked well with the wireless (a sky router with WPA security) but now, the wireless signal drops after a couple of minutes of usage. I have to reboot the laptop or sometimes reboot the router as well to regain the wireless signal. I am using the Broadcom STA proprietary wireless driver.
I have an older dell inspiron 6400 as well with the same OS and driver and it works perfectly without any problems for hours / days.
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Aug 18, 2010
I do randomly (as far as I know) loose my wireless network connection. The only thing to do then is to restart my router and after that it works for a while. I know this is not a hardware issue because I don't have this problem with KDE, only in gnome. I think this problem occurred after I started using 10.04, but then I changed to KDE and forgot about it. But now I'm using gnome again and loosing my network connection over and over drives me mad
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Sep 1, 2011
I have a problem with my wireless connection in ubuntu (natty with amd64bit) There seems to be intermittent disruption in my connection. Havent seen a pattern as yet, though it happens once a day. After that I cant get it to work at all and only restarting + reconnecting the USB device helps. Dont know what is going on.I have already read these pages : Commands and Wireless Troubleshooting.Here is my line of though1) Given that I am able to connect other devices to it while I am not able to connect through this desktop, I think the router is OK.2) I am able to work with it after restart + re-connection . And so the driver is OK and is loaded. The driver seems to be oK and loaded even while I am not able to connect.So why is this happening and how can I get this under control without having to reboot and re-connect the device everytime.Here are the output for the commands which will give you a more detailed idea of the process. Before reboot while I was not able to connect:
Code:
Script started on Tue 23 Aug 2011 01:40:08 PM CDT
raja@UshRaj: ~raja@UshRaj:~$ sudo nm-tool
[code]....
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May 2, 2010
Since I upgrade to Ubuntu 10.04 my wireless connection is very unstable. I install the needed wireless drivers from 'Hardware Drivers' (Broadcom STA wireless driver) and I got wireless connection, but it randomly disconnect, and also connection is very slow.
I think that the problem are the drivers which are not very compatible with this version of Ubuntu, which means we need to wait for update? I have HP ProBook 4510s laptop, Intel PRO/Wireless 5100 AGN network card & Gembird NSW-R2 router. I'm only having this problem on Ubuntu 10.04, on other OS's the internet is fine.
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Jan 21, 2010
Installed Fedora 12 recently.
For some reason, my network connectivity drops out randomly. This has happened between 5 minutes to 1 hour of booting and logging into the machine.
When the internet does work, its great, and super fast !
When it drops out, Internet stops working, cannot ping to external site and I cannot ping my router 10.1.1.1
I have onboard realtek network ports on my motherboard.
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May 24, 2011
I have an Asus EEPC that I use in my classroom whenever I want to show a movie. I normally keep all of my educational videos as ISOs, and then simply move one over to the netbook when needed. I normally use VLC for playback. With the latest upgrade, however, I'm having a few difficulties. No matter what DVD I choose to show with VLC, the audio stream will randomly drop every 10 minutes or so whenever I am using KDE as my desktop environment. In order to re-enable the audio stream, I have to either completely stop playback OR reconfigure the audio output in VLC.
(It does not matter if I change it right back to what it was, I will get audio for another 10 minutes or so). I've also noticed that if I pause playback, sometimes the audio will not re-enable when unpaused. Strangely, however, I do not have this behavior at all when I'm using Gnome as the desktop environment. I get seamless audiovisual playback and never have to fiddle with the audio. Is this a documented problem in Phonon somewhere? How I might better backtrace what's going on?
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Mar 25, 2011
Since I started to use Suse 11.3, I've been having problems with my sound card. It starts normally and I can use it without further problems, until it randomly stops working. I don't know what causes it to stop working, it just does. Then, if I go to YaST>Hardware>Sound (it shows I have a 82801G (ICH7 Family) High Definition Audio Controller), press edit then reset, it works again!
I've been doing this for like 4 months, but I'm growing tired of doing it and not being able to just sit back and enjoy music on the amarok. I don't know what should I report, so that's why I only say the sound card identification.
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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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Sep 28, 2015
I use Debian Jessie 8.2 and I am using a 3G connection using this modem => [URL] ....
The 3G connection works fine, except after 24 hours the connection drops and I cannot reconnect. If I reboot the computer, the connection will work again.
My guess is that my ISP gives me a new IP address after 24 hours and somehow my system cannot handle it.
How can I reconnect my 3G connection without rebooting?
I have already tried the following commands:
Code: Select allsudo service network-manager restart
Code: Select alldhclient -r eth0
dhclient eth0
Code: Select allsystemctl restart ModemManager
Results of journalctl and grepping my connection name (SFR)
Code: Select allsept. 22 17:58:19 ark1 NetworkManager[512]: <info> Policy set 'SFR Web / Prepaid 1' (eth0) as default for IPv4 routing and DNS.
sept. 23 18:17:07 ark1 NetworkManager[9446]: <info> new connection /etc/NetworkManager/system-connections/SFR Web * Prepaid 1
sept. 23 18:17:08 ark1 NetworkManager[9446]: <info> Auto-activating connection 'SFR Web / Prepaid 1'.
[Code] ....
As you can see sept 22 at time 17:58 is when the computer started up. And roughly 24 hours after it failed to reconnect.
Also I should mention that there is a script to run the command:
Code: Select allsudo service network-manager restart
if the computer cannot ping a server, ie if the connection is lost.
More journalctl info when the system tries to reconnect:
Code: Select allsept. 23 23:52:53 ark1 NetworkManager[9446]: <info> Auto-activating connection 'SFR'.
sept. 23 23:52:53 ark1 NetworkManager[9446]: <info> Activation (ttyUSB0) starting connection 'SFR'
sept. 23 23:52:53 ark1 NetworkManager[9446]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
sept. 23 23:52:53 ark1 NetworkManager[9446]: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
[Code] ....
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May 14, 2010
i cant get Qinternet to auto reconnect when connection is lost due to dynamic IP changes from my ISP.Im using Ifup method.Thing is, every 24 hours, ISP changes my IP and thus, disconnects me from the internet. I need it to reconnect but dont know how to do it.
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Dec 31, 2010
I have a ppoe internet connection. I was easier and faster to configure it in Yast than in Windows XP. When
The provider here sometimes goes through some problems and the connection may disappear and return at any unexpected moment. In Windows there is a icon on system tray that dysplays such information and I know when the connection is gone. It also allows me to try to reconnect manually. Where do I find these information on Opensuse here do I manage to reconnect. In Windows it was also possible to set the connection to re-dial automatically when it was out. It was very useful if it failed in the middle of a download, the system reconnected and the download manager retried until download resumed. Is there some way to adjust opensuse to reconnect automatically when connection fails or some software that does it? Furthermore, is there a good download manager that works in Opensuse that pause, accelerates downloads and retries when connection fails?
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May 26, 2011
I'm having a problem with the wireless on my Asus EEEPC 1000HE using Ubuntu 110.04. Digging into the laptop forums, it says there is a problem with wireless on some models of the 1000HE, but it is not the same wireless device and my wireless problem doesn't seem as bad as listed, so I think it's a different problem. But my problem is that if wireless drops for any reason, it will not start working again unless I either reboot the computer or click the wireless icon in the systray, click disconnect so it stops flashing (like it's trying to reconnect) and then suspend my computer or log off and back on. And it only does the latter because I added a file located at /etc/pm/config.d/00sleep_module with the one line that reads SUSPEND_MODULES="rt2800pci" (my wireless driver) So that one line seems to cause wireless to get a fresh connection after suspending (or something. I'm not a very advanced LInux user). I've tried running the command "sudo/etc/init.d/networking restart", but that does nothing for me. I'm not sure what other command to try to see if can fix it.[URL]
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Jan 8, 2010
I have ubuntu 9.10 server installed, I am connecting with putty over ssh 22. but after a while (about 20-30 mins) the connection drops. and I have to connect again. is there any configuration for that?
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Oct 26, 2015
I have done a clean install of debian 8.2 (jessie) on a new PC. I am working through some of the issues that were not correctly installed. One of them is the wireless network. On startup, I have a wireless connection. At some point within the first 5-25 minutes of being logged in and doing computer stuff (there is no known action that leads to the reaction), the wireless disconnects from the network and will not reconnect. The network-manager-gnome shows three horizontal dots; the system settings> network shows all of the available networks, the strength of their signal, and the "connecting" circle spins. This behavior occurs with both WPA and insecure networks.
I have followed the guidelines for Debian>WiFi>HowToUse (https://wiki.debian.org/WiFi/HowToUse). Nothing appears amiss when following the Network-Manager>Gnome portion of the instructions. I was going to try the alternate WICD program, but one has to uninstall network-manager to use wicd and synaptic also wants to remove something called "gnome", too-- uninstalling a package with that name makes me uneasy. I have noticed that the installed versions of network-manager (0.9.10.0-7) and network-manager-gnome (0.9.10.0-2) don't exactly agree, but I doubt that that is significant.
root@fayalite:/home/agnewton# iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"Mineralogy"
Mode:Managed Frequency:2.472 GHz Access Point: 64:E5:99:2C:A0:7E
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-18 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
[CODE]..
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