Ubuntu Networking :: Unstable Wireless Connection On Natty 11.04
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 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.
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)
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.
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.
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.
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.
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.
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
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.
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).
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.
My openSUSE's working unstable and very slowly! Wireless is starting very late.It appears 10min later after i loggen in,and wants me to enter wireless password.This windows is showing up so late,and I can't connect internet before it shows up.
I'm running Linux 11.04 and my wireless network was working just fine until today. I cannot connect to WiFi - it acts as if the device wasn't there. The hardware switch led isn't working. No matter how much clicking on it, it won't work.
iwconfig:
Quote:
lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bgn ESSIDff/any Mode:Managed Access Point: Not-Associated Tx-Power=14 dBm
How do you set wireless speed in natty? I've tried
Code: sudo iwconfig wlan0 rate 54M
but nothing happens. I've tried this with wireless enabled and disabled (using network-manager), with and without the module loaded (ath9k) and using the solution provided in some forums (adding the command in /etc/rc.local and in a script in /etc/network/if-up.d) but to no avail... link speed always shows up as 65M.
I just updated my work laptop to Natty: perfect. My home server: perfect. My oldish home laptop: no more wireless. [I use wicd instead of Knetwork (or whatever it's called) because I want a permanent connection no matter the user]
I have a D-Link DWA-645. I get the whole stage: connecting, authenticating, etc... and bad password at the end. The password is correct (hasn't changed during upgrade). I also tried disabling WPA and it still won't connect. That's wlan2.
I also tried with an older PCMCIA card that _used_ to work on ubuntu 9, but stopped on version 10: a D-LinkDWL-G650. It doesn't even show up as wlan0 as it used to. I also tried with a USB-wifi DWL-G122 which has always worked on every version of Ubuntu [I don't normally use it because it's not practical on a laptop]. I see it as wlan1, but same thing: won't connect. Note that like with wlan2 I can scan for networks and see several around. For instance:
[Edit] Some more info: the access point works fine, I can connect with another device. The driver in use by Ubuntu is ath9k. Using KnetworkManager instead of wicd doesn't change anything.
Got Ubuntu 11.4 installed on my Lenovo Thinkpad X220.Except very very rare cases i'm not able to establish awlan connection.Scanning is possible at all times, monitor mode works as well.Network Controler (lspci)
I recently upgraded from Maverick Meerkat to (classic) Natty Narwhal Ubuntu Linux. I am running on a Toshiba Satellite A665 (Intel i7). I use a wireless internet connection. Under Maverick, I had no issues. Under the update, I am finding that occasionally things stop working: The indicator Applet looks fine, but from a terminal, I find that I am no longer able to ping my own router (less than 10 feet away.) This behavior occurs after working fine for a few hours. I am unsure if anything in particular triggers it (I will report back if I determine a particular cause). I have a few other computers (2 running Windows, and the other Maverick Meerkat) -- and they are unaffected. Turning wireless off and on resolves the issue for me on Natty. Rebooting also works. Here's some hopefully relevant technical details about my system:
Code: ~$ rfkill list all 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no
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)
just installed Ubuntu 11.04 x64 on my Samsung R580 and cannot get the wireless to work/detect any networks around me (it looks like its on though at least as far as the indicator lights show on the notebook). I tried search around a bit and wasen't able to find anything...
i can't connect to my wireless network (wpa psk) with ubuntu 11.04 and my wifi card Intel 3945 ABG. i've done some search on the forums here and none of the workaround i've found works.
I started playing with Natty Narwhal (11.04) last week. I have a Toshiba Portege R700 laptop with 4GB of memory. Firstly, let me say that when I run 11.04 on the bare metal laptop (installed via WUBI) it appears to work flawlessly. That is, both the ethernet (hard wired) network and the wifi network work just fine.The networking problem occurs when I try to run 11.04 as a (Type 2) VM in VMWare workstation with an underlying o/s of Windows 7 Enterprise.
In this mode, the ethernet network works fine but the wireless network does not work. The o/s does not even see the wireless card. I have downloaded and installed about 216 MB of updates from the update center to no avail. I have "bridged" the VMWare "virtual switch" across to both the ethernet port and the wireless port (see below):Basically, it appears that the interface is not being presented to the VM.Also, of interest, Unity which works fine on the bare metal install does not run on the Ubuntu 11.04 VM.
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.
I have a wireless network (192.168.1.0) that's bridged to the Internet and a wired one (192.168.0.0) that's only local. When I am connected to both networks, Natty wants to route my Internet traffic through the wired, local-only one.
Can I make it automatically "just work", so that the right network is chosen for Internet traffic? Otherwise, what's the workaround?
I'm going to start using Debian as my desktop system rather than Ubuntu since I'm not really liking all the crazy eye candy and just wanted a fast and simple system. My main problem is networking, I guess I'll start off with my system specs and other information for problem solving.
I have a Realtek RTL8111/8168B Ethernet Adapter builtin to my motherboad which I am using, I could only get a basic connection, by basic I mean that it allowed me to connect to my local area network but not the internet. I then modified /etc/NetworkManager/NetworkManager.conf to change to managed=true this allowed me to use the internet, but the problem is, that it is a very unstable connection, the speed is very slow and it drops a lot! I have to carry on running /etc/init.d/network-manager restart twice to get my connection back, which lasts for about a minute.
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.
