Ubuntu Networking :: 11.04 Slow Wireless Connection Using Ath9k Drivers?
May 1, 2011
Since upgrading to Ubuntu 11.04 my wireless connection has been extremely slow. The same happened with 10.10. Although that was quite different. Back then everything within my network moved slowly, but now it doesn't affect my web browser. It seems to have only slowed the application centre and update manager. I am still waiting for the flash plugin to download and install for testing ....., but I am torrenting Ubuntu 11.04 right now and have actually hit the limit of my bandwidth (1.1 MB/s) whereas the speed in the software centre and update manager was in the region of 45 kb/s.
I'm not sure if this is because I have installed extra drivers found here after I did some research.
Although my web surfing is fast and stable, I would like to get my updates and applications downloading properly. Does anyone know what I can do?
From my 2-hour googling spree I know you may want the results from the command "lspci"
Code:
root@Felicia:/home/silkworm# lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
[Code].....
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Jul 31, 2011
Just re-installed Bodhi. Ran update, dist-update, set up connection and connection still slow or timing out and reporting errors in 'iwconfig'. This is 3rd re-install of this version. Have also tried 3.0 kernel and pae versions of Bodhi. Cannot get this connection up to speed and without errors. Atheros chipset ar9271.
Sorry for weird subject line and opening paragraph. Trying to make it easy to find and browse in case this gets solved and can help someone else. Not being a Linux guru, I can only hope to help others through my mistakes and ignorance.
I followed instructions to update driver listed at Linux Wireless.
In addition to following the directions at Linux Wireless, I also downloaded the GUI Program to install ath9k_htc.
No luck. My connection reports 1M/s and is reporting "invalid misc:" errors in iwconfig.
I'm running Midori browser but apt-get and wget are also downloading slowly.
I'm connecting to a Zyxel 660 series router using WPA/WPA2.
uname -r
Code:
Code:
Code:
Code:
sudo lshw:
Code:
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Nov 19, 2010
I've been running hostapd for a while in 11g mode with great success. Having upgraded the router machine to maverick today, I had a poke at getting hostapd working in 11n mode without too much fuss. From cursory reading of old forum posts, this appears to now be built in functionality without needing to compile drivers or hostapd from source - this is borne out by a few 11n-related lines in the default configuration file.
When adding those two lines to my config file, though, I get the same error message I did a few years ago when trying this out for the first time:
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Jun 30, 2011
Since I installed Ubuntu I've had this problem that makes me loose connection to the Internet. The wireless-icon on the panel starts loading, and after like 5 minutes, it works again.I had this problem when I had Mint 11, but it happened more often.Anyone know how to fix? Edit:Network: Card-1 Atheros AR9285 Wireless Network Adapter (PCI-Express) driver ath9k Card-2 Marvell 88E8040 PCI-E Fast Ethernet Controller driver sky2
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Jul 7, 2009
Today I finally installed Fedora 11 on my new laptop. To my surprise wireless was working already, this was something very new. however, i realized that the ath9k had a very bad connectivity. I cant even connect to my router from my bedroom which is less then 10 metres away. Is there some remedy for this unstable module? I have tried madwifi but it doesn't seem to work with my card which is a Atheros AR9285. Hopefully someone can shed some light on how he/she overcame this problem.
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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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Jan 10, 2011
I've recently purchased a TP-WNL951N PCI Card for wireless N stuff. I have a Netgear WNDR3700 for use with my AP and I've confirmed that within windows XP I can connect at 300mb/s.
Within Ubuntu though, it only goes up to 54mb/s. Is there something special I need to do to enable wireless N speeds?
Here's some info that I should probably put in:
Code:
root@Linux:~# lspci -nn | grep Atheros
05:00.0 Network controller [0280]: Atheros Communications Inc. AR5008 Wireless Network Adapter [168c:0023] (rev 01)
root@Linux:~# ifconfig wlan0
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Sep 19, 2010
I just got a wireless card and I've been having connection issues under Linux. The chipset I have is a Ralink 2860 (the card itself is an Asus PCE-N13) and supports 802.11n speeds up to 300 mbps. I am connecting to a DLink DIR-655 router, which also supports 802.11n at 300 mbps. I get full bars when connecting to my router, and my router's connection information shows my computer connected as 802.11n with the signal at around 80%, but the data rate is usually around 5.5 mbps. (I've rarely seen it go up to 18 mbps) I can confirm this woefully slow speed with anything I try to do over the network. Additionally, my wireless connection will sometime be disconnected and network manager will often fail to connect. When it fails to connect, my router lists my comptuer with the correct IP address, so I know it is successfully connecting to the router and the router is accepting the connection, but network manager seems to not recognize this.
I am running Debian Squeeze (testing), but I have a custom kernel, which is 2.6.35 and is using Debian's kernel configuration. I have the newest firmware from Ralink's website, and I also tried the newest drivers, which made no difference. (I have since removed those drivers, since I'd prefer to use the drivers supplied with the kernel if possible, but I can install them again if necessary) I put this card in my main computer and booted under Windows, and it was able to connect with 100% signal (it's right next to the router) and at 300 mbps. I also tried it under Debian on my main computer (with the stock 2.6.33 kernel), but it only connected as 802.11g, and even at 100% signal it was only connected at 36 mbps. For comparison, my laptop with an 802.11g card and running Mac OS X can achieve the full 54 mbps at 84%.
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Dec 30, 2010
I want to connect to a 300mbit network (802.11n). With Windows (the same Computer) I am able to connect with full speed, but with Ubuntu Maverick (64bit), and a lot of other distros I tested, I am only able to connect with 54mbit. The builtin wireless network card is an Intel Corporation Centrino Ultimate-N 6300 (rev 35). Is this a driver Problem? I updated to kernel version 2.6.37-rc2 via ppa sources, but with no luck. I tried to extract the windows driver and started it with ndiswrapper, but i properbly made somethng wrong, because the card did not show up, though ndiswrapper said adapter available... oO?
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Mar 21, 2011
I have a problem with my wireless where when running the laptop from the battery the connection is very slow. When the laptop is connected to the power supply everything is fine, but the moment it's disconnected and run on the battery the speed drops when browsing the Internet or accessing files on other computers on my network.
The laptop is a Samsung SF310
Wireless chipset is BCM4313
Code:
02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g LP-PHY (rev 01)
Subsystem: Wistron NeWeb Corp. Device 051a
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f4c00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: wl
Kernel modules: wl
In attempt to fix this I installed the latest drivers from the Broadcom site using this guide. When I enabled these drivers everything worked well. I did speed test and got the same speeds I get when connected via Ethernet:
Ping 51ms
DL 4.31
UL 0.65
So I set the drivers to load at boot using this forum post as a guide as the steps in the Broadcom guide didn't work and rebooted the laptop on battery power. The wireless connected fine, but the slow speed problem had returned. Running a speed test got the following results
Ping 235
DL 0.54
UL 0.30
So I ran iwconfig when running from battery and then from power supply.
Code:
xxxx@xxxx ~ $ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:215 Noise level:160
Rx invalid nwid:0 invalid crypt:0 invalid misc:0
As can be seen the signal quality is 5 and signal level 215
Code:
xxxx@xxxx ~ $ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:214 Noise level:164
Rx invalid nwid:0 invalid crypt:0 invalid misc:0
And when connected via the power supply the signal level is 5 and signal level 214. There may be some kind of power saving issue, although there are no relevant setting in the BIOS and I can't see anything in the various wireless control pannels. I have other wireless drivers and there are no problem with those.
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Sep 26, 2010
I'm been wanting to try Ubuntu for a while now, and when my mom's netbook started to get insanely slow with WinXP, I tried the Netbook Remix on a USB stick. I LOVE it, except I am unable to get the wireless working, which is the only thing stopping me right now from a full install.
I believe my problem is that I need to activate the two drivers "Broadcom B43 wireless driver" and "Broadcom STA wireless driver" which appear as unactivated when I go into the hardware drivers admin tools. Unfortunately this netbook (HP Mini Netbook FW376UA) does not have an Ethernet port, so I can't just temporarily hard wire it to activate these drivers.
So my main questions are: 1) How can I activate those drivers without an internet connection?, and 2) Do you think that activating these drivers is indeed the answer to getting the wireless working?
The details:
Machine: HP Mini Netbook FW376UA
Network Controller: Broadcom Corporation BCM4312 802.11b/g
Ubuntu version: Ubuntu 10.04 Netbook
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Jul 21, 2009
on my laptop (dell d620) when I try to connect to wpa networks I get frequent disconnections and very slow speed.
My network card is: 0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Insted when I use connetion whitout wpa encyption I've no problems...
how to configure iwl3945 to get decent performance on wpa networks ?
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May 15, 2010
I have installed Fedora 12 OS which is using kernel 2.6.32.11-99.fc12.x86_64. I am using a Linksys WMP600N Wireless-N PCI Adapter with Dual Band card which has a Ralink chipset. I have installed the latest rt2860 driver which uses the 2.6.32.11-99.fc12.x86_64 kernel. If there is any other pieces of information that is need I can provide it.
Problem: I can use either the Ethernet connection which is built into my ABIT mother board or my PCI wireless card. My Ethernet connection works perfectly however; my wireless card comes up attaches to my wireless router; that's it. There is a strong signal, the WPA2 security password works correctly. I am able to ping my loop-back address and my DHCP IP address for my wireless card but I can not ping the router or anything outside of my box.
If I let the ping program run for a while and allow it to try to ping the router, after a period of time ~5minutes or so I will get several hits and then stop. The firewall does not change from my Ethernet connection to my wireless connection. The Wireless connection is a trusted interface in my firewall specifications. Questions/Thoughts:
Can I use the same OS provided routing table for my Ethernet connection for my wireless connection? Would the OS know which port to use by switching to a wireless connection (after reboot)? Do I need to somehow switch or bridge the port? Is the wpa_supplicant playing with my connection and opening it up and then shutting it down? Below are some netstat data: routing, interface table, statistics, and dmesg on the kernel driver rt2860.
[Code]....
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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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May 29, 2010
I'm having problems with my wireless. It connects without any problem, but it is very slow. Actually I have the impression that the connection velocity is varies from normal to very slow, however the average connection velocity is very slow. I have been looking up the forums for more the one month with any success. I have tried to install the compac-wireless drivers and the kmod-wl with many different network setups. For sure it is not a problem with my home network, since it works fine with my other old notebook running fedora 11 or when I boot in the windows.
My system configuration is:
- sony vaio VPCCW23FX
- card: Atheros AR9285
- driver: ath9k
- operating system: fedora 12 - kernel 2.6.32.12-115.fc12.x86_64
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Jul 17, 2009
I am a convert from Ubuntu (9.04 kept freezing on my laptop; when it did work, many packages it seemed were outdated--ie only Eclipse 3.2, rdesktop was messed up [and apparently is also in Fedora]), and I am having some trouble with getting my wireless working.I am running Fedora 11.First off, there is a problem when trying to connect when using DHCP. NetworkManager gets to the second green dot, and then after a short while I am given a message that the connection was disconnected.
Configuring the interface manually, not using DHCP, allows the connection to complete. However, the internet is very slow. There is a 15-30 sec delay before website loading actually commences, and then another delay each time an ad must be fetched from another server.How can I fix this delay? I know I have encountered it in earlier versions of Ubuntu, but I can't remember how I fixed it.About the rdesktop problem, if anyone is able to help [maybe I should post another thread?], the cursor color (the color of the pointer) is inverted---where it should be white it is black, and where it should be black it is white. I use rdesktop a lot to connect to my terminal server in my basement. Any idea how to fix it?
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Nov 24, 2009
I'm running Fedora 12 on an Acer Aspire One with KDE. The built-in wireless works without a problem EVERYWHERE except at work. It's a shared wireless connection using WPA/WPA2 security.I can connect but it's "hit-and-miss" if I can do anything with it. Somedays it works well for a few minutes then has a period of inactivity - then slow - randomly receives...It worked flawlessly when the computer was running Windows7 no one else has connectivity issues but I'm the only one using Linux.
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Mar 4, 2011
I got a TP-Link WN951N Wireless-N PCI card for my Squeeze HTPC (this is AR5008. Performance is awful. On the lucky runs I'm getting 4 MB/s from Samba, most of the times I'm seeing 1-2 MB/s, and sometimes less than 1 MB/s. Also, ssh is not smooth, e.g. when I type commands, it can take seconds before text appears on the console, or I get slo-mo. Forcing 11g gets me a consistent 2.2 MB/s but lag is still there.
The machine has also been tested under XP SP3 and pulled off a solid 11 MB/s on a large file with no lag, so the hardware would seem OK. I've tried several kernel versions (both Liquorix and Debian stock), and a couple versions of compat-wireless (2.6.38-rc4 and 2011/03/03 bleeding edge), with little variation in outcomes. The logs got no weird messages in them, although with the more recent drivers/kernels iwconfig looks like this:
wlan0
IEEE 802.11bgn ESSID:"GuessIt"
Mode:Managed Frequency:2.457 GHz Access Point: x:y:z:t:u:w
Bit Rate=270 Mb/s Tx-Power=19 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=46/70 Signal level=-64 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:64 Invalid misc:19967 Missed beacon:0
Tx discarded packets are through the roof and excessive retries is not bad either. The system doesn't run NetworkManager, wicd or whatnot. All of the wireless is configured through /etc/network/interfaces:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-driver wext
wpa-ssid GuessIt
wpa-ap-scan 2
wpa-proto RSN
wpa-pairwise CCMP
wpa-group CCMP
wpa-key-mgmt WPA-PSK
wpa-psk <hexbabble>
Did I commit some horribly naive mistake or overlook something Really Important(tm) ?
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Apr 17, 2011
Since 2.6.38 ath9k has become slow as a snail. After searching this issue I have found a solution.
Create a file called /etc/modprobe.d/ath9.conf in this file enter thisoptions ath9k nohwcrypt=1Reboot or reload the module and enjoy high speed again.
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Oct 13, 2010
I am having problems with the wl driver for the BCM4322 on 10.10.
It seems with two different routers the connection is really slow and jumpy and web pages barely want to load. I have tried a usb wireless device, and it seems to work much quicker.
Is anyone else having problems with their broadcom cards with the new update?
10.10 64 bit. Using Broadcom restricted drivers (wl)
ifconfig :
Code:
eth1 Link encap:Ethernet HWaddr 0c:60:76:0e:35:07
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::e60:76ff:fe0e:3507/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code].....
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Jun 5, 2010
Basically the problem is a slow download speed over my wireless connection that does not occur in Windows Vista. The reason I'm so annoyed is that the speed is not constantly slow. It bursts at around 600kb/s (good for my internet connection). The problem is that while trying to download a file it bursts for about a second,then total throughput decreases to +/- 1kb/s for a few seconds, then another burst and so on. Note the file I'm downloading is a http:// download, not p2p or anything. I've attached a screenshot of the System Monitor.
Screenshot-System Monitor.png
Some additional info. I'm using Ubuntu 10.04 with all available updates installed. The browser in use is Google Chrome.
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Jun 27, 2010
I've installed Ubuntu Netbook 10.04 on my HP DV2000 laptop and now I want to get my wireless to work by installing the proprietary broadcom drivers (4311, I think). But my internet doesn't work yet obviously, so I need to download the drivers to my thumb drive on my desktop and install them on my non-networked laptop.My issue is that I don't know:a) Where to get the driversb) How to install them from a local drive
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Jul 24, 2010
I have an Acer 1551-4755 notebook with AR5B93 wireless chipset. ath9k is loaded and my card is detected as Atheros AR928X PCI-Express wireless network adapter. However, the ath9k driver is only allowing me to connect at 802.11g speed in spite of the fact that my WRT310N loaded with DD-WRT is in mixed mode. I am able to connect at wireless N speed with my D-Link DWA-130 usb dongle, but this is a rather backward solution. Is there a way to work around this issue, ie an updated ath9k or other madwifi driver? I would hate to resort to ndiswrapper for a natively supported chipset. I am using openSuSE 11.3 for the first time, long time Fedora user.
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Dec 2, 2010
No improvement since I first reported this problem, I am hoping somebody can now advise.
Using openSUSE11.3 Linux 2.6.34.7-0.5-default i686 with kde 4.4.4 release 3.Problem is the wait of sometimes over 2 minutes before the wifi connection is available.Two questions:-
1. Why does it take so long? Longer by far than it to be with previous openSUSE releases. Much longer than with that other OS!!!2. How do I remove the wallet process. Not needed in present environment so I would like direct connection without having to open wallet. I didn't set this up, it just happened after I had upgraded to 11.3 and I need to know how to disable it to save time.
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Jul 23, 2009
I have Fedora11 running in my machine and it has no LAN port (RJ-45). I have a wireless PCMCIA card.The model of the wireless card is NL-2511CD EXT2(ETSI).When I insert that card to the PCMCIA slot a window pops up and ask for a WEP key. My wireless router is configured with WPA but above pop-up has no WPA option. I suspect my fedora installation does not have the necessary driver for my wireless card.I want to install that driver. I can transfer that file to the machine via thumb drive since it has no network connection yet. How do I install this? Please refer below images as I'm still a newbie at linux.
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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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Nov 24, 2010
I recently reformatted and dual partitioned to both Windows 7 as well as ubuntu 10.10. Loading works fine and Windows 7 is 100% operational. I cannot seem to get my wireless network adapter to be read by Ubuntus 'Windows Wireless Drivers' gui. Here are the steps that I have done THUS far, to make sure that we are all on the right path. Before I go any further, my wireless network adapter is an old school WUSB11 Linksys Wireless Network Adapter (running version 2.6).
1) Downloaded and installed "ndiswrapper" from ubuntu's main website. I downloaded the common, utils and ndisgtk files and installed them accordingly.
2) I extracted these three files to the desktop of Ubuntu and accessed the terminal page.
3) From terminal I typed "cd Desktop" to change the directory to the desktop.
4) Next, I typed in "Sudo dpkg -i ndiswrapper-common_1.54-2ubuntu1_all.deb
Sudo dpkg -i ndiswrapper-utils-1.9_1.54-2ubuntu1_i386.deb
Sudo dpkg -i ndisgtk_0.8.5-1_i386.deb"
5) This installed Windows Wireless Drivers gui successfully and I can access it.
6) I have downloaded the driver files for the adapter from the cisco website and searched them for the required files needed.
7) After extracting the .INF file from the "Drivers" directory named "NETUSB.SYS" (I wasn't sure if the other associated files within the same folder needed to be present together with NETUSB so I moved everything to the desktop) I typed in "sudo ndiswrapper -i NETUSB.inf". After accessing the Windows Wireless Drivers gui I have noticed that the 'netusb' driver is present yet under it, the system states "Hardware present: No". This leads me to believe that maybe I installed incorrectly or my "fireware?" is not present? I was reading through the installation guide posted on the ubuntu website that in addition to the .INF file we also need the BIN file(s)? and SYS file(s)?.. The folder with the drivers for my adapter contains a BIN file but it is not within the "Drivers" section of the folder.
9) Upon mousing over the network Icon naturally my hardware is still not present.
10) From what I gather after the system finds the hardware I am to write into the terminal
[Code]....
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Mar 20, 2010
i installed ubuntu along side of xp, and i cannot get my wireless to work. the drivers that are installed in xp work great, and i can access the internet, but do not work in ubuntu.
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Jan 9, 2010
I'm running Ubuntu Karmic on my desktop machine which is connected to my wireless router (via LAN cable).
I have two laptops on the LAN as well. One is my wife's Windows 7 laptop and the other is my Ubuntu Karmic laptop.
They both connect wirelessly to the LAN and all three computers have static IP addresses assigned.
So here's the issue. The desktop serves the laptops over the LAN with Samba file sharing, SSH, VNC and DAAP.
From the Windows 7 laptop, the connection over the LAN is fine. I generally use it to connect to the Samba shares and occasionally use it for VNCing to my Desktop's....desktop. It is fast and responsive.
From the Ubuntu laptop though, everything seems very slow. Connecting to the samba shares results in a wait of at least 30-60 seconds, even if they have only recently been accessed. Once it has connected (i.e. once the share opens up and you can see files) actually opening the files themselves is delayed too, but not to the same extent.
Also, connecting to the desktop via VNC is intolerably slow, with mouse movements being so delayed that it is almost impossible to click on anything.
SSH takes a long time to connect too (up to 30 secs) but obviously once connected it is fine. In a similar vain, FreeNX connection takes a long time to connect but once the desktop has loaded it is fine too.
I can use FreeNX instead of VNC but actually like using both for different functions. I understand VNC is slower than FreeNX but over a 100Mbps LAN connection I wouldn't expect it to be slow at all.
This laptop used to be a Windows Vista/Win7 laptop prior to being replaced with Ubuntu and it was able to connect to the server with no speed problems.
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