Ubuntu Networking :: Upgrade To 10.04 - Wireless Connection Is Unstable - Randomly Disconnect ?
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 9, 2010
I have a cisco linksys wireless adapter (WUSB600n) which, most of the time, great when booting up. But mostly after some time (1min- 1hr.) it disconnects. When checking the status I can see some of the networks around me, including mine. But selecting it doesn't do anything. I searched the forums and tried:
sudo dhclient
and
sudo /etc/init.d/networking restart
But still no connection; the only thing that helps is rebooting.
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Dec 21, 2010
I am running FC13 on a Compaq Presario 2100 using a Broadcom BCM4306. I was able to get it running thanks to Fedora Unity Project. But It's a very unstable connection. I don't know what settings to adjust or enable or disable. It's not my router, this is the only wireless connection in the house that I have trouble with.
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Jul 20, 2010
do not post such long blocks of messages directly on the forums. Attach the output as .txt or use a pasetebin.
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Jul 31, 2010
I recently installed Ubuntu 10.04 on my Acer TravelMate 3270 notebook (with Windows 7 dual boot) for everyday use. All is great except i started to notice my Wireless Network get disconnected and then reconnects every 5 minutes or so. Also the NetworkManager Applet 0.8 keep annoying me with the notifications that its disconnected and then reconnected.
I do not have this issue while using Windows 7 (in the same area). Can this be fixed. As i really want to move my day to day computing need to Ubuntu.
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May 24, 2010
I understand that wireless is one of the most common problems with Linux, although I did not have this experience with past distributions or versions. After two years away from Ubuntu I installed 10.04 and everything is working fine except the wireless connection. Actually, it does work and connect, but goes up and down, loses connection and in most cases does not reconnect, unless I am 1 meter from the router. The room next door is already too far, a place where I normally have my laptop connecting perfectly with XP.
I am using a Toshiba M70,some additional information below:
lspci=
00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile 915GM/PM Express PCI Express Root Port (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
[Code]...
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May 19, 2011
I'm using an Atheros ath9k wireless card that has been pretty stable since Ubuntu 9.04. I did a clean install of Natty and ever since my wireless connection has been pretty unstable.
It doesn't actually disconnects but I lose all connectivity. The wifi card continues loaded with a static IP Address assigned to it but I cannot connect to anything. The only way to fix it is restating the network manager and I have to do it at least a couple of times every day.
I tried to whitelist ath_pci on /etc/modprobe.d/blacklist-ath_pci.conf but the problem still persists. Also yesterday I enabled the ubuntu backports on my software sources but so far no kernel updates.
Here are some of the messages filling up the logs:
I added all this info to this bug as well: [url]
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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 31, 2010
I have been useing Ubuntu for 1-2years now. Lately I've been having some troubles with my wireless Internet connection, almost every 1min i disconnect and connect again few sec after and thats like hell if you try to fx. update. I have 85-92% signal so thats not my problem.I use Ubuntu 10.04 and the standard network manager. I'm connected to a netgear router and my computer is a acer aspire one.
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Jan 8, 2010
My wireless card works most of the time, however with prolonged usage results in a temporary halt in functionality. I am not sure how to go about diagnosing or solving the problem, and I do not know what information I should be providing.
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May 29, 2010
I tough that firefox was the problem of my very slow web sites loading, but I am suspecting that sometimes the internet connection is the reason, maybe for some reason that I don't know it can not just connect to the site.I am running Linux quick-desktop 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/Linux.when I browse the web it is very slow to load.sometimes I get this error message.Could not locate remote server.Even I know the site is up running like google.
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Aug 30, 2010
I am severe wireless problems with Ubuntu 10.04 on my laptop.(Spec below)
I have just performed the first clean install since new. Installed a new Hard Drive as well. The machine and wifi was fine under Ubuntu 9.04.
It is booting much faster now but the wifi keeps dropping off.
Spec:
Machine - Acer Aspire 4310
Wireless card - *-network
description: Wireless interface
product: AR5001 Wireless Network Adapter
vendor: Atheros Communications Inc.
[Code].....
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May 5, 2010
NOTE: My upgrade wasn't smooth. Now everything is extremely slow. However if I boot from the disc to try without installing, the connection problem is still there. There is an exclamation mark on the connection applet, right clicking shows that Enable Wireless is unchecked and unclickable. I've included outputs of common network commands which might prove to be useful.
Code:
[~] ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:33:60:f0:3c
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
[Code]...
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Oct 27, 2010
I have Ubuntu running on my HTPC and for the longest time all this was working fine. Now all of the sudden my Internet connection is all sorts of slow. Chrome browser, transmission bt, apt-get, all have the same speed issue. I tried disabling IPv6, changing my DNS and installing all the latest updates. Nothing works.
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Mar 11, 2011
Im new to linux (2 days only) so i have some driver problems. My internet connection is unstable. It reconnects every few minutes (5 min approximately). Im connected with wired dsl connection to routher. My network adapter is "Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller". I use Ubuntu 10.10 Maverick Meerkat release, kernel 2.6.35-27-generic.
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Jun 23, 2010
My network is barely functional. I'm running 2 linux servers connected by openvpn (tun) through routers on both sides. There are Windows clients (98 and XP) on both subnets. One server (ls3) acting as PDC for the domain. The Windows clients use the respective linux boxes as gateways. On the server side (ls3 which is both openvpn server and samba server), all the clients can read/write properly to shares on both sides. The problems are all on the client side. Share connections to the server side disconnect after a few moments.
Browsing on the client side windows machines is fine. I can see shares on the server side. Some server side files open and are readable, writable, other server side files will not open. Some samba logon scripts on the server side can be opened from the client side. Others open after a long wait to a blank file! Permissions on server side files are set to 777 for testing. If a file won't open or reads "blank", that doesn't change no matter how many times you try. A non-readable/writable file overwritten by a readable/writable one can be read and written to!
I can ping successfully from any client on either side to any other client by either ip address or workstation name. Firewalls on both side are set to forward tcp and udp traffic going to port 1194 to the respective gateway linux boxes. Iptables on both linux gateways are down for testing. I tried reversing the openvpn server/client roles with the same result; the same physical side of the network had the problem. On one of the windows 98 clients, I wiped out the networking configuration completely and rebuilt it from scratch. Same result.
One one of the windows xp clients, I tried to rejoin the domain. It went through successfully but the result was the same as above. The network was operating smoothly for several years until the client side dsl modem broke last week. It was replaced with a newer model and at the same time I migrated from a pptp connection to openvpn. How to resolve this, Is this something to do with openvpn? Is this a network hardware problem? Am I missing something in the port forwarding on the routers? My smb.conf files are ancient except I added interface tun0. I have never seen 2 files sitting next to each other in the same directory where one opens and the other doesn't!
I'm running Mandrake 9.2 on the client side and Mandriva 2008 on the server side. I have a Sonicwall firewall on the server side, a Westell 7500 on the client side. I note that during the modem install, the http port was opened to the linux box on the client side and the access log got huge over the weekend and I ran out of disk space until I closed it down and deleted the log. I tried a simple test while viewing /var/log/daemons/errors on the client side. From a windows workstation in the client subnet, I opened a dos window and tried to print a file located on the samba server on the openvpn server machine which I knew NOT to be problematic.
The file printed and there were no errors reported in the log. I repeated the test with a known problematic file. The file would not print. The errors log noted:
Authenticate/Decrypt packet error: packet HMAC authentication failed
I regenerated the static.key file on the server side and scp'd it to the client side and restarted both openvpn's. I checked for duplicate files named static.key on both sides. Same error.
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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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Apr 23, 2011
I recently upgraded from Debian Lenny to wheezy (testing). I use a popular 3G modem, the Huawei E220. In Lenny everything worked fine. I use wvdial to connect and the script from lenny, which worked just fine.Unstable behaviour goes like this:I connect, pppd starts, then, either immediately or after a few seconds, the modem hangs up (pppd errorcode 16). Upon retry a SIM Error is being thrown or the /dev/ttyUSB0 node vanishes. Un/Re-plugging the modem and dialing again results in a working connection (mostly). Is there any possibility finding out why the modem hangs up (because a web research revealed that there are a million possibilities for this behaviour)?
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Jan 16, 2010
I have an odd problem in that my wireless connection is okay until I close the laptop. When I open it back up, I'm unable to reconnect. This problem first occurred after upgrading to 9.10. I can reconnect after restarting. I tried several things before breaking down and reinstalling 9.04. After installing 9.04, everything works great. Any suggestions on what is going on before I try upgrading to 9.10 again? I have a Dell D600.
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Jan 4, 2011
A fresh Xubuntu 10.10 install will give me access to my network, but with fluctuating speeds, and certain pages load forever. I have tried the blacklist edit as well as ndiswrapper, and neither have helped me. I can't find a madwifi guide for this issue either. Details: Upon fresh install of xubuntu 10.10, wireless is detected. I enter my, key, hit google, and all is good. Then I try to log into my online classes. Firefox hung forever. So I tried a few other sites, and to my disappointment, random sites seemed to fail. Brand-new, fresh, clean Xubuntu 10.10 install, Toshiba Satellite M45-165.
[Code]...
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May 10, 2010
Ok, so I upgraded my acer aspire one to the new Ubuntu 10, and at first everything was working fine, except the audio. Now, for some reason, my wireless and ethernet ports have died. I can't get online by either method. I can do ifconfig <device> up and it will show up if i do iwconfig or ifconfig, but the wireless isn't associated with the AP. Currently I'm trying to load some drivers for my atheros card, and we'll see how that works outReally I was wondering, how come the modules don't load at boot time, and how can I fix this? I've been a Linux user for quite sometime, however I've been more of end user
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Aug 9, 2010
I'm having trouble with my Samsung Netbook N220 and its Realtek 8192 wireless card and could use some help with diagnostics. I would like to use the netbook as a server and after a day or so the system stops responding. What I'd like to know:
- What do the "========>ieee80211_parse_info_param(): athros AP is exist" spam messages actually say? Does anyone else have this and stability problems?
- Why is the realtek driver package not working?
I'm running Ubuntu Netbook 10.04/Kernel 2.6.32-24-generic. Initially the card was unable to connect, so I installed the Realtek driver rtl8192se_linux_2.6.0017.0507.2010 which adds a kernel module r8192se_pci.ko. At first my system was hanging during bootup. I then restored /lib/modules/2.6.32-24-generic and now the card is connecting but the system is unstable. The 2.6.32-23-generic kernel, modules listed below, still has modules as installed by the realtek driver and is not working. Below the drivers supplied by ubuntu
./2.6.32-24-generic/kernel/ubuntu/rtl8192se/r8192se_pci.ko
./2.6.32-24-generic/kernel/drivers/staging/rtl8192su
./2.6.32-24-generic/kernel/drivers/staging/rtl8192su/r8192s_usb.ko
[code].....
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Dec 27, 2010
My netbook model is Asus eeepc 1201n and I'm running Ubuntu 10.10 but I had the same problem while running 10.04: wireless disconnects and reconnects every 30 minutes or so and, after this has happened for a few times, it doesn't reconnect and keeps asking for the password.
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Jul 2, 2011
Every time I download torrents in Ubuntu 11.04 on my desktop, using Transmission or Deluge clients, the wireless transfer speed abruptly drops off, becomes very choppy, and in general doesn't remain stable. It's not only the torrent download that slows down, but it's everything including web surfing, even though I'm not maxing out my connection speed. It's not that I'm getting disconnected from my router, it's just that the wireless transfer speed drops off, becomes intermittent, and never gets back up to full speed.
At first I thought that my ISP was throttling my connection, but this issue doesn't happen with a direct cable connection to my router, nor did it happen when I was running Ubuntu 10.04 before. It also doesn't happen when I'm downloading the exact same torrents over wireless using my netbook running Ubuntu Netbook Remix. This issue ONLY seems to happen when using a bittorrent client while on wireless on Ubuntu 11.04 on my desktop. I can max out my internet connection speed by streaming videos, downloading from FTP, etc. using wireless just fine, and the transfer speed remains stable. This also seems to happen with a couple of different wireless USB adapters (rt73usb or rtl8187 drivers).
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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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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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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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Nov 30, 2010
I am running the newest version of Ubuntu on my laptop. The connection randomly seems to massively slow down. After a speed test is run it registers at .05 download and Ubuntu crashes before it gets to upload. I reboot from the crash and it runs fine for a while, then it suddenly does the same thing. The connection is running fine on my Windows 7 desktop, I don't know what is going on. In transmission the upload speeds are running at ~100kbps though. If I try downloading a mere 400kb .torrent file it stops half way through, usually at 200-300kb done, downloading at 1.2kbps the entire time. This is getting very frustrating and I really don't want to go back to Windows.
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Jan 25, 2010
I have an Asus laptop with a BCM4318 wifi chipset. result of lspsci command about wifi cards:
Code:
00:09.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02) For some reason, I often get disconnected. Once it's disconnected, I cannot connect anymore and I need to reboot my laptop in order to get the connection back! I didn't have this problem when I was on Ubuntu 8.04. I checked in /var/log/syslog and I found this when the network is disconnected:
[Code].....
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