Ubuntu Networking :: Wireless - Constant Connection Drop Offs - Comp Freezes
Oct 19, 2010
I've been using a Netgear WG311v3 wireless card to connect to the internet successfully since 8.10. However, since 10.04 I've had some serious issues with this card (at least...I think it's the card). I updated to Meerkat hoping that the problem might fix itself, but it's still there. Here's the situation: The problem most often occurs when I'm running Transmission, but also Firefox. It also happens when streaming videos to my xbox via uShare...basically, any time I'm using the internet.
Suddenly, my download in Transmission will drop to 0.0 KiB/s or in Firefox, pages will stop loading. If I close and try to reopen Firefox, it tells me the process is already running. If I try to restart, it says firefox-bin is still running. I click reboot anyway, and the computer hangs indefinitely at the purple Ubuntu shutdown screen. The terminal also freezes if I try to run any commands that are wireless related, for example iwconfig or ifconfig. I have to close the terminal to kill the process.
I've also had more serious crashes when running Transmission where absolutely everything freezes and a hard reset is my only way out. Forgive my n00bishness and let me know what other information I can provide you with.
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Apr 23, 2011
It's also because I've never had any big problem. The last openSUSE I used without problems was/is 11.2(I still use it as main desktop because of problems since 11.3).The problem is - the DL speed is repeatedly drops down to around 156KB/s albeit my top speed of router-NIC combination is at 21-22MB/s. When this happen and open network manager and click/reload my wifi or restart wireless or even computer, the speed is back at the top. But after few seconds, minutes it drops down again, and so on. I made some images(to see it on the network manager draphs):after that drop-off:and restart wireless:Best chance to see it is when downloading more files with FreeRapidDownloader or JDownloader. Upload speed is OK. The first time I've seen this problem in 11.3, which i've skipped in hope that 11.4 will be ok and now, as the EOL of 11.2 is coming I'd like to go on.It's also desktop and installation media independent(Gnome works similar, DVD, LiveCD).I've checked many other distributions and none of them had this problem. But openSUSE is my love, so i need and want to solve it
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Nov 17, 2010
I am new to fedora, but not so new to linux. I've got f13 installed on my netbook, and the speed and overall beter-ness? of it made me want to get it going on my desktop. I've installed, and have updated the kernel, and network manager (Along with a few other things). My problem is this; after about an hour or two I get a drop out, unable to reconnect. Until I use 'ifconfig wlan0 down > ifconfig wlan0 up' then it works great for about 10 minutes, slows down, and eventualy drops out. i updated networkmanager in the hopes it may have been that, but it really made only a slight difference.
iwconfig :
$ iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:
Mode:Managed Frequency:2.462 GHz Access Point: 00:1E:2A:0E:08:50
Bit Rate=54 Mb/s Tx-Power=18 dBm
Retry long limit:7 RTS thr: off Fragment thr: off
Power Management: on
Link Quality=32/70 Signal level=-78 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
I am using a linksys wusb54g > chipset ralink rt2510? (don't quote me on that its from memory). I am also using WPA encription. I am currently messing with those setting to see if that helps.
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Jan 28, 2010
I am trying to figure out why, i need to restart/reboot ubuntu in order to reconnect wirelessly after being in power save mode. It works fine before the power-save mode and fine after the restart. Is it an IP issue?
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Jan 26, 2010
I'm trying to get my wireless to work on my laptop (dell inspiron 1520 broadcom 4311). I installed the b43 firmware and was able to set up my wireless connection. However, the internet connection is extremely patchy and seems to continuously drop (in fact most of the time it doesn't work). I can ping certain sites such as Google and get all packets received.
[Code]....
Furthermore, in Firefox the opening websites only works some of the time. Sometimes the google search page will load and sometimes it won't. I've disabled ipv6 using yast-network settings.
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May 2, 2010
This is a fresh install of Ubuntu 10.04 on a Dell XPS M1530. I'm getting very frequent disconnects to my wireless network, despite good signal. I have wicd and nm-applet running side by side, wicd doesn't work by itself and nm-applet won't get a new IP after reassociating with the AP.
Wireless connection is steady in Windows 7, so I'm guessing it's a problem with the driver.
Wifi card: 0b:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Driver:
Code:
[ 22.889588] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 2.6.32-21-generic-ks
[ 22.889592] iwl3945: Copyright(c) 2003-2009 Intel Corporation
[Code].....
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May 15, 2011
Folks, I am running 10.10 with the Macbuntu addon (theming, if that makes a difference).I've noticed for a long time, when I play some videos, my network connection (on this computer only) drops. For instance, while posting this, I began to watch this video:
HTML Code:
<iframe id="tsFrame55086" src="http://cdn.topspin.net/api/v2/widget/player/55086" style="width:400px;height:300px;border:none;" frameborder="0"/>
[code]....
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May 25, 2010
I have noticed a really bad problem on here that i never had on windows 7 even with overclocking.
It seems the fans stay on and are basically idling or are at minimum speed and the computer and graphics cores are just idling at 99c which is really dangerous, but not critical yet since this is an alienware laptop and the technician did say its temperature rating is above that.
The problem is I need to get the multiple fans in the case to start up and cranking like they do to keep the system really cool in windows 7. I kinda wanna get this fixed ASAP as i dont want to constantly be running at this temperature.
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Dec 18, 2010
I've been goign nuts trying to find the source of this niggling problem I've had since upgrading to Maverick. Whenever I'm watching anything I will get these short freezes of about half a second before he file continues playing. It will happen on average 3-4 times per hour on a video file.
For MP3 playback it's even worse, I'll get a stutter every couple of minutes, sometimes several in the same song. I reformatted completely and installed Maverick from scratch. For about a day I thought I had it sorted but then it started happening again.
I checked dmesg and there are a number of worrying lines like this:
Quote:
[40616.032093] ata1.00: failed command: WRITE DMA
[40616.032108] ata1.00: cmd ca/00:20:df:b6:82/00:00:00:00:00/e0 tag 0 dma 16384 out
[40616.032111] res 40/00:00:00:4f:c2/00:00:00:00:00/10 Emask 0x24 (host bus error)
[40616.032118] ata1.00: status: { DRDY }
[Code]....
The thing is that this problem occurs on all three of my hard drives (2 SATA, one IDE) so it's extremely unlikely all three have become damaged on the day I updated. Could this be a kernel problem of some sort? On an unrelated note all but one of my USB ports fails to recognise any portable music players.
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Dec 10, 2010
I am using Ubuntu 10.10 x64. When I try to change the setting to powersave or ondemand the applet resets back to performance after a few seconds. It is causing my laptop to get hotter than necessary. Which is bad.
Also, the computer tends to freeze at random times and a few seconds afterwards the screen will blank to a color like purple or white. sometimes vertical stripes too. I have had this issue since I installed 10.10. (It happened twice trying to type this post >.<)
I am using a Gateway NV5207u. AMD Turion CPU and ATI Radeon HD 3200 graphics
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Jan 15, 2010
I've been using Ubuntu 8.04 for about a year and the wireless has been fine but now it's gone screwy and I can't figure out why. This has happened on my laptop and wife's who uses Ubuntu Hardy also. The speed drops to almost 0 mb/s whenever the signal strength is less than 95%.
It isn't the internet connection as vista (I dual boot) works fine below 95% signal strength. To get the internet speed to be at a level that can load an internet page, I have to within 3 feet of the router!! Both of the laptops don't use ndiswrapper, the internet connected straight away from a fresh install.
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Mar 28, 2010
A friend who switched ISP's gave me his old Linksys WRT54-G wireless router. I went through the installation procedure and had a wireless connection up and running - smiley face. I had security set up for WPA, and decided to upgrade it to WPA2. Another smiley face. When I went to connect (had already done so successfully), I noticed it referred to my wireless as Linksys - I was expecting to see the SSID. So I started playing around in Network Manager and now I have things all effed up.
Don't know exactly what I did, but now I have no wireless. So I ran a few commands (lshw -C network, iwconfig, ifconfig, and iwlist scan), and looking at the results I see what appear to be inconsistencies in the output. I've posted them below, and make the following observations:
1. Under the lshw it refers to my wireless connection logical name as wmaster0, and has the correct MAC address, etc.
2. Under the iwconfig it says, 'wmaster0 no wireless extensions', but then refers to wlan0 as the wireless connection (although it does not seem to be running).
3. Under ifconfig I see both a wlan0 and a wlan0:avahi. The wlan0 has no IP, the wlan0:avahi does, but it is incorrect.
[Code]...
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Jan 24, 2010
Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
ubuadmin@ubucomputer:~$ ifconfig
wlan0 Link encap:Ethernet HWaddr 00:06:25:12:83:3b
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::206:25ff:fe12:833b/64 Scope:Link[code].....
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Jun 11, 2011
My problem is exactly the same as [URL]
but I am stuck at the last hurdle
here are the output of the command that helped to solve the case in the previous post:
ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:1b:77:d2:59:55
inet6 addr: fe80::21b:77ff:fed2:5955/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[Code].....
I have also tried sudo dhclient but it hasn't helped and I am still unable to connect to the internet
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Mar 31, 2010
I'm having problems with my internet connection; it seems to be working fine then every other click of a page there is no connection, then I click it again a second later and it works. I am using a wired network connection plugged into an addon wireless router.
When I use ping under network tools it seems to be fine, then freezes halfway through and doesn't receive those few packets, giving me a transmission percentage of about 70%.
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Jun 21, 2009
I have installed Fedora 11 recently. I want to share my Internet connection.
I have e LAN connection eth0 which is connected to internet.
I have a Wireless connection wlan0.
I want to share my internet connection with wireless connection.
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Feb 4, 2010
I have two linux laptops. Currently, I'm using both of them at work, side-by-side. Now the problem is, I'm connected to a wireless router, but the wireless only works on one of the laptops. So I'm stuck with one laptop that has no access to the internet. Both machines do, however, have working ethernet nic cards. So, I was wondering if I could use the laptop with the wireless connection to share the internet connection with my other linux machine and access the internet on both of them. Or as an alternative, just use the internet on the machine without wireless and be able to switch back and forth, that would increase my productivity like 30 fold.
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Nov 28, 2010
Unlike a lot of others, I have had no problems getting the wireless on my Dell Studio 1558 working with the STA driver. As long, as I am not on battery, that is. Within minutes of switching to battery and disconnecting from the LAN, my system freezes: I cannot move the mouse, the keyboard is useless (I can't even Ctrl-Alt to a terminal) and my only option is a hard boot.I currently have the 2.6.35-23 kernel and I have tried the following driver options for the wireless (all the below were tried with 2.6.35-22):
- the Broadcom STA driver in the repos- the latest STA dirver from Broadcom- the new broadcom driver, not yet available in ubuntu repos (brcm80211)- ndiswrapper ( I can only get win 7 drivers for my laptop, so this does not even enable the driver)My Wifi card uses the BCM43224 chipset.After a freeze, I have pored over the logs and I cannot find any obvious error messages preceding the event - so I am a little at wit's end ito resolving this. Can anybody give me any clues as to where I should start looking to resolve this issue?
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May 16, 2011
I just installed Ubuntu 11.04 on my asus eee pc 1001px. Problem when I switch to wireless. Netbook freezes and all I can do is shutdown it by hand. Netbook have Atheros wireless adapter.
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Apr 11, 2010
I setup a windows comp to do ics but decided I needed more control so I am trying to use a linux comp. heres the how to I am trying to follow. [URL] I will have both windows and debian machines connected. the first thing is to get my daughters winxp comp connected to the internet since she needs it for school. I need a central server to control which comp accesses what. most of the windows comps will be passing through to the internet while my linux machines will be accessing each other. maybe later a samba share. but right now I only need proxy and dns. I would say doing it with windows was easy but I learned how to do that from posts on this sight and someone might remember them. I will say it is now easy to do windows proxy but I need to replace a active directory domain with something differant. servers is where linux should excel. heres what I get when I type route.
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
localnet * 255.255.255.0 U 0 0 0 eth0
default dslrouter.alban 0.0.0.0 UG 0 0 0 eth0
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May 2, 2010
I have recently set up a dual boot comp running Windows 7 and Fedora 13 (test) and began noticing that after a short while,was taking forever to access web pages. When I look at my router which is running DD-WRT I noticed my active connections was over 500 whereas should only be around 200 maybe or less. This does not occur under windows,so am not sure where to begin.box is running 64 bit quad core processor.
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Jul 28, 2010
Since I upgraded to Lucid, I am dealing with serious instabilities related to my wireless card. What happens is that when there is a lot of wireless activity the computer freezes. It is a complete freeze, the mouse stops moving, if something was coming out of the speakers it keeps echoing, and the only solution is to turn off the computer. The bug seems to coincide with the one listed in here
[URL]
My wireless card is Intersil ISL3890/ISL3886. My whole computer is an HP z555. I'm thinking that is should be a bug in the wireless adapter driver, which is p54pci. The only solution I can think of is to blacklist it and set up ndiswrapper. I am not very comfortable with this solution since a native linux driver should be better than ndiswrapper.
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Nov 23, 2010
I've got an atheros ar9287 based card with the ath9k driver from the base install of lucid and I installed a compat wireless patch via this thread: [URL]... to fix the issue of the card being stuck on a given channel when using aircrack. Now, my system freezes up after about a minute or two. If I leave the wireless card off, everything runs fine no problem. I uninstalled the compat wireless driver via the readme just make uninstall in the compat-wireless folder, but I still get the freezes. So I assume it has something to do with the patches. I have no idea how to remove the patches. Can anyone help me with this or is there a way to get everything up and running so the original problem of being stuck on a channel is fixed?
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Jun 21, 2011
I upgraded Ubuntu 10.10 to 11.04 on my IBM Thinkpad T41. [URL]... Since I did this, my gnome desktop freezes constantly after I connected to a wireless lan. It doesn't freeze immediately but a couple of minutes later. syslog gave me the hint that it could be a mistake in loading a module for my intel wireless card. syslog:
Code:
Jun 21 14:40:16 BlackBox pulseaudio[1508]: module-alsa-card.c: Failed to find a working profile.
Jun 21 14:40:16 BlackBox pulseaudio[1508]: module.c: Failed to load module "module-alsa-card" (argument: "device_id="29" name="platform-thinkpad_acpi" card_name="alsa_card.platform-thinkpad_acpi" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> WiFi now disabled by radio killswitch
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> (eth1): device state change: 3 -> 2 (reason 0)
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> (eth1): deactivating device (reason: 0).
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May 26, 2009
I am using Fedora 8 on my laptop, newly installed, I can see the network card(Linksys WPc54G v2) and Network Manager sees the wireless router, however as soon as I tell it to connect my computer freezes and I have to restart. I searched for solutions but all I found was Ubuntu problems.
Actually it seems that the trigger is when the keyring comes up and asks for a password. As soon as I start typing the pass it locks.
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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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Sep 11, 2015
I would like to log and drop outgoing connection attempts, but the log is not showing the destination IPs.I have the following Iptable rules for my browser:
Code: Select alliptables -N LOGGING
iptables -A OUTPUT -j LOGGING
iptables -A LOGGING -j LOG --log-prefix "browser connections: " --log-level 6
iptables -A LOGGING -j DROP
Only after removing the DROP line it works.
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May 3, 2010
How can I drop or forward a incoming connection from a part of a host like *.alicedsl.de
For example:
The user is connection from *.alicedsl.de on port 12345
So how can I drop this connection or forward to google.com on port 80
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Feb 23, 2010
I have setup my linux fedora server and i want to restrict access to my server.Basically i control using iptables.I'm not sure how to write an iptables rules to control drop all connection to port 8080 and allow only certain ip can access the instance on port 8080 example ip=10.254.14.16,192.168.1.10.
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Jan 9, 2011
I am running Ubuntu 10.10, and I would like to use my computer to share the internet connection from an ethernet port. For example, I would like to set up my computer as a wireless access point so I can create a network that other computers can connect to for internet.
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