Ubuntu Networking :: Initial Wireless Connectivity Slow?
Jan 9, 2010
I'm running Lucid Alpha 1. Installed it about two weeks ago. Until a few days ago, the wireless networking was the best I've witnessed on any o.s. However, after last Wednesday's updates, connectivity now lags about 10-30 seconds whenever I open any web-page or access the repositories via aptitude. Granted after it gets going, it's fine. I noticed this same behavior in 9.10. I tested my XP connection and found no problems. .
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Jun 25, 2011
Wife's laptop has AR5001 Wireless Adapter laptop model is Toshiba Satellite A215
Problem : Wireless networking randomly loses connectivity and can not regain connectivity, the only apparent solution is a full power down , this is not even certain to work. The card works under Windows, she hates Windows. (I love her for this) I know it's not faulty hardware , because it will work for days on end under Windows without problems.
Things I've tried : madwifi drivers (any and all versions available) : These increase stability of the signal and seem to delay the inevitable however it still happens. When using these drivers the only option is to unload them modprobe -r then reboot then remove them again and re add them. It makes no sense why this works, and if I don't remove them prior to rebooting it will not work.
ATH5K drivers : These are pretty much junk, results are unpredictable at best, sometimes it will work perfectly for a few hours, sometimes it will not work at all. Nothing is repeatable, I can't seem to force whatever condition is causing this. rfkill does not show the wifi being blocked (hard or soft), unblocking it anyway does nothing, only way to make this work and it's iffy is to fully power down wait 5-10 minutes turn it back on and it MAY decide to work.
Firmware update : Updated the Toshiba BIOS to the latest version of the firmware 2.0 no joy here either. Same issue both sets of drivers.
Tried different distros and kernels : I've tried Mint 9, 10 ,11 ; Ubuntu 10.10, 10.04 , 9.10 and 11.04 (which is currently installed) , Fedora and OpenSUSE. All are giving the same problems. I have also tried a slew of different kernels no joy from any of them (I'm not at the computer with the issue now I will post exactly what kernel versions I've used when I have access to the machine).
Another useful bit of information, the hard switch to disable/enable wifi WILL disable it but turning it back on does absolutely nothing. The hotkey does nothing at all. The bios does not have an option to disable or enable the wireless card.
I will also post the typical lsmod , lspci , iwconfig all that good stuff when I get back to the computer in question. I'm probably just going to buy a PC card for it and give up on that one, but this is driving me insane and I would really like to see it resolved even if I do replace the hardware.
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Mar 18, 2011
My internet connection is pretty fast, but the initial connection to websites take about 4-10 seconds. Sometimes I even get a "connection timed out" error. Once and if the connection is made, the website loads up pretty quickly. I have no problems with internet speed otherwise as I get pretty good speeds for downloads and torrents.
Chrome shows "sending request" and Firefox shows "looking up" during this period of apparent inactivity.
It is not a DNS problem as I have switched DNS from my default to the OpenDNS servers. Besides, everything works fine on Windows with either DNS setup.
I have also tried switching off ipv6 by adding "alias net-pf-10 off" in modprobe.conf. I even switched off ipv6 in Firefox in about:config to no avail.
Oddly, wget seems to work fast and normally. And nslookup returns results almost instantly.
I am on Arch linux with a Broadcom wireless card.
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Mar 28, 2010
I want to identify why my ISP is sometimes slow, and wonder how and what tools to use. The problem is as follows: While the lines are very fast, I experience that at times of day where there are presumably high traffic, a new initial connection is very slow and unstable. For example getting response from DNS is slow. And after getting the answer, getting response from a web server is also slow. Or sometimes there is no response at all, and I have to retry. Running a speed test will show high data rates. So it is only initial connection that is slow/unstable.
What is the explanation for these symptoms? Are there some tools and tests I can use to pinpoint the problem from home, without/before contacting the ISP?
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Aug 10, 2011
So after some period of inactivity, my FC servers with infiniband cards in them seem to go to sleep or something. If I login to the machine and try to ping other machines with IB interfaces, the first request takes much longer than the others. This is not so over Ethernet.
compute-4-12 ~]# ping ib-s0-1 (this is a solaris machine)
PING ib-s0-1.local (192.168.1.19) 56(84) bytes of data.
64 bytes from ib-s0-1.168.192.in-addr.arpa (192.168.1.19): icmp_req=1 ttl=255 time=3.64 ms
64 bytes from ib-s0-1.168.192.in-addr.arpa (192.168.1.19): icmp_req=2 ttl=255 time=0.131 ms
64 bytes from ib-s0-1.168.192.in-addr.arpa (192.168.1.19): icmp_req=3 ttl=255 time=0.222 ms
compute-4-08 ~]# ping c4-7 (identical neighboring FC machine)
PING compute-4-07.local.local (10.255.255.187) 56(84) bytes of data.
64 bytes from compute-4-07.local.255.10.in-addr.arpa (10.255.255.187): icmp_req=1 ttl=64 time=1.28 ms
64 bytes from compute-4-07.local.255.10.in-addr.arpa (10.255.255.187): icmp_req=2 ttl=64 time=0.108 ms
64 bytes from compute-4-07.local.255.10.in-addr.arpa (10.255.255.187): icmp_req=3 ttl=64 time=0.115 ms
64 bytes from compute-4-07.local.255.10.in-addr.arpa (10.255.255.187): icmp_req=4 ttl=64 time=0.119 ms
64 bytes from compute-4-07.local.255.10.in-addr.arpa (10.255.255.187): icmp_req=5 ttl=64 time=0.180 ms
This issue does not only affect ping. I created a user that mounts his home directory over nfs over infiniband. ssh'ing in takes longer the first time as well. If I ssh with verbosity turned up all the way, I get a brief hang at "we sent a hostbased packet, wait for reply" (this is the primary symptom I'm trying to get rid of since we want home directories over nfs over IB (without the initial delay)).
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Mar 8, 2010
Any tool where I can test a web site with slow connectivity? E.g.:
A web server running at Location A
and from Location B want to test the web site hosted at location A with various speeds
How is the loading of the web site from location B at 256kbps, 512mbps etc..
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Apr 22, 2010
I have installed Fedora 11 and Fedora 8 on two differnt machines and I am doing an rdesktop to connect to a Windows 2003 server. The connectiviy is pretty fast when I try and connect the same from fedora 8 machine but it very slow when I try and connect it from fedora 11 system. I have tried using TS client but even then it is pretty slow. I have also tried using an Nvidia 8400 graphic card and Nvidia 9600 on Fedora11 OS.
I have also tried using Fedora12 OS as well. Is there any thing specific I can check on Fedora11? Or do I need to do some thing on my windows 2003 machine?
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Apr 19, 2011
As promised the finished (pretty much finished) wireless script can be downloaded here the wireless_script is a diagnostic tool for wireless issues. It will return all relevant information to help diagnose a wireless connectivity problem, return connectivity stats and attempt to fix common problems such as blocks. It comes in cli - wireless_script_1.2.sh or gui - wireless_script_zenity_1.2.sh'
Let me know any issues you have with it. My contact details are in the readme.txt (also the wireless results.txt generated by running the script includes code tags for forums - so please copy and paste the whole document when pasting on forums to enable this function)
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Mar 13, 2010
I've been trying to use the wireless adapter that came shipped with my computer for a while now (it is NOT a USB adapter; it seems built into the computer). However, I can't seem to get it working.HP says that the driver is Lite-On USB Wireless 802.11 b/g Adaptor. I am currently connecting to the internet with my netgear USB adapter (I think the driver is something like prism_usb)
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May 15, 2011
I am new to linux. I just installed linux on my PC and wanted to configure wireless network connections. I have entered SSID and mode is set to infrastructure. I don't know what is BSSID do I need to enter MAC address (of router?)?I need to connect to internet wireless can you please guide me ?
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Jul 2, 2011
I have a Air-CB21AG-A-k9 cisco Card and trying to run it with Ubuntu 11.04. But this card doesnt seems to be plug n play device with ubuntu 11.04. As soon I inserted the card both the leds are flickering but no wireless conectivity.
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Jan 10, 2010
I recently formatted an old Dell D600 and installed 9.10 on a single partition. It connects to my Airport just fine hardwired, but I have had no success getting the IntelPro/Wireless 2200BG card to talk wireless. I've entered the SSID and WPA2 security ID with no success.
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Oct 31, 2010
I just installed Ubuntu 10.10. I was using iBall N 150M USB adapter for internet connection with Windows XP. Let me explain about the present Windows connection :
I am using an Outdoor CPE Wimax. For mobility purpose I have connected this wimax to one LAN port of ADSL+ WiFi router ( Beetel 450 TC1 ). This ADSL+wifi router reset to Factosy settings and enabled DHCP. With this setting , I am perfectly able to connect my laptop to Internet.
When I connect my USB adapter to Ubuntu , intially it detected the signal and asked for credentials. I gave the same and network established. But I am not able to browse the net. If I give [URL]..., its going to the ADSL+Wifi's diagnosis page. With Windows , [URL]... was going to the Wimax modem. After 2-3 trial and error , now Ubuntu also not able to connect to the wifi network.
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Jan 16, 2011
Just recently I've been having strange connectivity problems with my wireless network. The connection has previously worked fine and haven't had any problems with it. I haven't installed anything that would have affect it as far as I know. how do I go about testing the network to see where the problem lies? I'm running Ubuntu 10.10 with a Netgear WG111v2 wireless adapter and my guess is it is some strange configuration problem or a rogue application is eating up packets because the system works fine when I boot it up into Windows.
When I try to ping my router I'll usually get something like 98% packet loss. However in the output below, the network sprang to life half way through my pings so it went up to 63%. What other tools can I try to find out what's going on?
Code:
alex@obsidian:~/dev $ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1a:4d:4e:03:3f
UP BROADCAST MULTICAST MTU:1500 Metric:1
[code]....
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Oct 11, 2010
May I please have some help configuring wireless connectivity?I just moved and went from connecting to a LAN infrastructure to connecting with a wireless cable modem. The modem is dual-purpose, it has two ports, one for an Ethernet cable, and an access point for a wireless connection. The ISP is CableOne. My laptop, which I use most often, is wireless capable, and I want to use the wireless feature. The laptop is running Fedora 13 KDE, with a VirtualBox virtual drive running WinXP.
I have used NetworkManager to create a wireless connection and name it. I have also used WPA encryption for this because I don't want anybody else using my bandwidth. Moreover, I have tried no encryption and WEP, all to no avail.
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Dec 10, 2010
The problem is I have a wireless Belkin router which I can connect to, but after being connected for a few minutes the net disappears (cuts from the router) and my laptop will have to reconnect again to the router for internet to work again. After a few minutes (or seconds in some cases) the connectivity loss will happen again over an over.
How to fix this problem or some things I can try, I've tried updating to two different firmwares, two different channels and resetting the router. The biggest problem I find is that this happens on both my laptop, another laptop in the house and also my tablet PC but doesn't happen on two other laptops in the house, I've also tested with windows 7 and Ubuntu with my laptop.
My laptop wireless card is Atheros AR9285 802.11b/g/n WiFi Adapter
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Nov 13, 2010
I have just upgraded to 10.04 and can't get wireless connectivity because the STA driver for bcm4312 fails to activate. Does this sound familiar to anyone? I had had similar problems in 9.10 and tried to install bcmwl-kernel-source which apparently caused errors in the upgrade process. Not sure if this is part of the problem.
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Nov 15, 2010
There seem to be a number of people that believe the junk that NetworkManager is buggy.As I believe the opposite, I want to offer more detailed instructions on how to create the initial connection, and how to troubleshoot the process. Once readers of this group have commented on this draft, I plan to ask the moderators to make it a sticky.
This description will be specific to the KDE desktop. The steps will be similar for Gnome, but the details may be different.
Step 1: Do you have a Network Manager applet in the system tray? If not, use YaST =>
Network Devices => Network Settings. Under the "Global Options" tab, click on the "User Controlled with Network Manager" button. If it is already set, you will get a warning box when "Network Settings" starts.
Step 2: Now you should see the NM applet. Click on it and check the popup. If the "Enable Wireless" checkbox is inactive (gray), there are several possibilities: (1) Your wireless device driver is not loaded, (2) the necessary firmware is not available, or (3) an rfkill switch/button is wrong. For (1), check "hwinfo --network" and check the "Driver" line. If it is blank, then you need to run the command "/sbin/lspci -nn" if the device is connected to a PCI bus, or "lsusb" if a USB device. Post the results on the Wireless forum. For (2), look at the output of "dmesg | grep firmware", which will list the name of the file(s) to be loaded.
For Broadcom devices that use either b43 or b43legacy, the firmware is obtained by using the command "/usr/sbin/install_b43xx_firmware". You will need a wired connection to complete this step. For (3), you will also need a wired connection and install the
"rfkill" package using the command "sudo zypper in rfkill". The interrogate the current settings with "/usr/sbin/rfkill list". If any device is "Hard blocked", then wireless will be disabled.
Step 3: Once the "Enable Wireless" checkbox is active, check it and click on "Manage
Connections". Choose the Wireless tab and click on Add. Enter the name for this connection. You will probably want to check the "Connect Automatically" box. Next click on the Scan button. If you do not see your Access Point (AP) in the map, you will not be able to get a connection. Click on the AP you want, and click OK. The (E)SSID should be in the SSID box. The other boxes on this screen should be OK as is. If you have several APs with the same SSID, but you wish to restrict the connection to only one of them, then you should enter its MAC address in the BSSID box.
This usage is rare. Next click on the "Wireless Security" tab and enter any encryption secrets. The correct type should have been selected. For WEP encryption, you will need to use the hex key, not a passphrase. Once this is complete, click OK to close this screen, and the configure screen. During this process, a popup should appear offering to use a
wallet to store the connection secret. If you use a password on this wallet, you will need to enter that password each time you log in. If you set no password on the wallet, the security level is lowered, but entering a password is avoided.
Step 4: At this point, you will need to disconnect the wire. Whenever the computer can make a hard-wired connection, it will supersede any wireless option. The wireless connection should then occur automatically.
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Mar 29, 2010
I got ubuntu working fine on my netbook and wanted to play around with opensuse. I have it installed and everything works fine except my wireless connection. I have updated everything since the installation through a wired connection, that didn't help. I have read the stickies, but to be honest, I'm so new to this stuff I'm kinda lost. So my wireless network has a WEP encryption and I have entered that password as a 64 HEX Key in the Wireless Manager widget. It connects to the network and says is labeled as active, however there is still the yellow exclamation shield next to the connection. Firefox and other apps don't have access to the internet.
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Apr 30, 2010
Since I've updated from 9.10 to 10.04, I'm having some difficulties to use the internet. Even though I can connect to my home wireless network, the connection is really slow. I've got a Dell Inspiron 1545, and here comes the configuration:
Code:
sussa@sussa-laptop:~$ sudo lshw -C network
[sudo] password for sussa:
*-network
description: Wireless interface
product: Wireless WiFi Link 5100
vendor: Intel Corporation
physical id: 0 .....
Apart from that, I must say that Ubuntu 10.04 is fantastic. Easy to use, elegantly designed and working perfectly on my PC
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May 21, 2010
I am running Kubuntu 10.04 (32-bit) on a Sony VAIO VPCCW23FX, when I connected to my router through Wireless the connection is too slow and random, 3 kB - 50 kB. But when connect to the router through Ethernet cable I get the normal speed 265 kB. I read many posts but can't find solution, and already updated all packages. the Wireless card is:
Code:
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
the output of iwconfig:
Code:
wlan0 IEEE 802.11bgn ESSID:"zzzzplw9"
Mode:Managed Frequency:2.437 GHz Access Point: 00:25:68:9B:0D:FE
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
[Code].....
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Mar 28, 2011
I have very suboptimal Internet speed in Wifi with Ubuntu. Normally in WIndows 7 I get download speeds up to 800 KB/s and a very fast Wifi experience, but in Ubuntu I get 100KB/s maximum and web page load speed is very extremely slow. Also, pinging to AP often gives very high response times and a lot of lost packages while in Windows they are very low and none packages are lost. I have a Netgear wg111v3 which worked out of box when I installed Ubuntu but always with this problem. It is updated and I've reinstalled Ubuntu many times..
Also I forgot to say that in Ubuntu the connection goes down very often and sometimes will not connect again until I reboot. Again in Windows never happened that.
Motherboard: GA-MA74GM-S2H
CPU: AMD Athlon 64X2 dual core
2 GB RAM
Ubuntu 10.10 64 bit
Wireless adapter Netgear wg111v3 USB .....
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May 15, 2011
I'm using a Netgear WN11v2 wireless USB card, which I've read some people can't even get working with the default Ubuntu wireless driver. It works for me, but it disconnects fairly often, and download speeds are extremely slow, like 12-15 kB/s. I have broadband, and am running Ubuntu 11.04.
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Jun 5, 2011
I have an older Gateway with model number: 4024GZ, and I just installed Ubuntu on it and I am not able to connect to my home's wireless network. I am assuming that this is because of a driver issue, whether there is none or the old driver isn't compatible. So is there a website that I can go to to maybe find a driver that will work with both my wireless card and ubuntu? My wirless network adapter is internal and is a Broadcomm I believe. (btw I am a beginner here and if I have posted this in the wrong section,
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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 7, 2010
I am running 9.10 on my compaq laptop. I tried linux a couple years ago and was not impressed with it's operation on this machine (wifi didn't work, pain in the butt to make it work) but I just installed 9.10 and to my surprise, everything on this machine seems to work now automatically!
One minor annoyance though, when I boot my machine and the gnome desktop loads, it takes about 1 minute until the wireless finds and connects to my router. Granted, my SSID is set to not broadcast but I set ubuntu to find it as a hidden network and it does in fact work, just takes more time than usual to find and connect. Normally with windows, when it loaded, my wifi was present and connected immediately.
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May 26, 2010
I am running dual boot of windows professional xp and ubuntu lucid lynx.I am experiencing a slow network with ubuntu.I am connected through trend net wireless N adapter and dlink 524 wireless router.my network icon is down to 1 bar,25-30% mostly.
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Jul 31, 2010
Its a Dell Inspiron 1300 Laptop. 1.8GHz Pentium M, 2GB RAM, 160GB HDD, and some form of Intel graphics. The wireless card in question is a Dell TrueMobile 1300, with a BCM4306 Rev02 chip.Installed 10.04 LTS, updated it all on wired connection, then enabled the bcm43legacy drivers that were in the Hardware Drivers box, and it all worked fine. First thing I did was try to install some media codecs, and noticed they went slow on wifi, and swapped to the wired connection again. I thought it might just be slow servers, but I instantly got an extra 200kbps just by wiring. I try browsing the web, but its extremely slow and sometimes Firefox stops responding. I then begin to install WINE, and it complete stops loading, so I watch the net traffic when I hit a search in FF. Nothing goes out. I hit it a few times more, and finally it'll send something and receive something, but still VERY SLOWLY.
Its not a local problem, as other computers and laptops can connect fine with good speeds. Just wondering if this is normal, or if there's any other drivers to try, or if there's something I'm doing wrong here. I'm kind of a linux noob, but I'm for defs not a computer noob. But since I can't be guaranteed the drivers work with my specific card, who knows?
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Apr 29, 2011
When first starting up I am not able to get a wireless connection, network manager says that wireless is disabled. Then some time later (can be up to five minutes after starting up) it will finally start working.I have tried rfkill list all, but it shows:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
[code]....
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Jul 14, 2011
I installed 11.04 last week. Everything was working brilliantly until I turned on my laptop today. Now my wireless internet is running soooo slow. Requests take like 5 seconds, then it loads the page for about 10 seconds. Last night it was running fast.Chrome/Chromium/Firefox all run super slow. I tried turning off wireless-N and using G instead, but that didn't help. My windows 7 desktop is not experiencing the same problems in Chrome, or Firefox. I'm not sure if it's updates that I installed yesterday that didn't take until I restarted today
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