Ubuntu Networking :: 8.04 - Wireless Speed Slow / Drop
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.
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.
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 .....
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
I am having problems with download speeds in Ubuntu 9.10. Downloads start at a healthy speed and then drop to almost zero. This affects apt-get install, Pan newsreader etc. With apt-get install if I terminate the download (with [Ctl][C]) and restart it I get another burst at high speed then again back to almost nothing. It makes updates a nightmare. With Pan newsreader I get high speed for most files but when downloading some of the larger files the speed drops right back to almost nothing after a while. I am on wired ethernet (no wireless). Typically I will get about 1.1MB before the speed drops - although I think it may be a function of time rather than data. I am talking to my ISP via a Netgear FWAG114 router and a NetComm NB5 ADSL modem operating in bridge mode. Although a number of users appear to have experienced very similar symptoms here I haven't found an answer that works.
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.
i have a zenda w322u usb wireless adapter that gives a good connection to wireless router but seems to give very poor download performance compared to my laptop. Are there settings that i can access for this adapter to improve its performance.
When using launchpad and the ubuntu daily build website it is very slow. I get 1.2mb/s normally and the speed drops quickly to 0kb/s This is the case from any version of ubuntu that is installed on my laptop.In windows it is no problem, equally there is no problem from a live cd or an install on my external hard disk. Is canonical blacklisting/slow listing my ip?
I am behind a university network but am sure this problem occurs at home .I did a clean install and had no problem until about an hour ago. When I tried to re download a project using bzr my speed instantly ropped.I had downloaded it fine a couple of hours ago. I hope that someone can shine some light on this, its very hard to work on projects if I can't download them.
I'm experiencing slow speed transfer between two wireless connected laptops running ubuntu 9.10. Using SSH to tranfer files between these two laptops, which connect to the internet via a wirelesss router, with good speed. This is why I'm surprised by this low speed : 52.3 KB/s, averaging 3 hours and 31 minutes for a 700 Mb movie. Is there any way to make this faster ?
We have a server and we have instales an Open suse 10.3 on it. We created a Samba server also. Made to share folder, that we acces from network from other computers that have xp.
The problem is if we try to copy from server it is very slow only 100-300kb/s. The strange thing is that if i copy 1 file then its slow but if i start to copy another one the speed gos up to 10-15mb/s. Evry time i want to copy somethin or install from that server i need to start another copy. If i copy from a comp to that server the speed is normal only if i copy from server its slow.
I replaced only my mainbord and cpu and Ubuntu 9.10 boot just fine. The only issue that I have is that my connection speed dropped from 10Mb to 3Mb. I try the connection on my laptop and it is fine 10Mb, so the problem is with the PC. What else to try before reinstall Ubuntu as a final step?
In mi fstab file I mount a smb file server at boot. The code is: //<ip address>/data /home/eng-2/NAS smbfs credentials=/home/eng-2/.smbcredentials,dir_mode=0775,gid=1000,uid=1000 0 0 Transfer rate to the server is approx 100 KB/s Whilst transfer rate from the server 16 MB/s If I mount it from Places>connect to server. Both to and from speeds are 16 MB/s. Why is it so slow when mounted through fstab?
I am hoping someone can help me I setup a brand new ubuntu 11.04 64bit system with:-AMD Phoenom 840 (3.7GHz overclocked) 8GB DDR3 RAM.WD20EARS x 4madmin (RAID5) SetupFor some reason I cannot get the write speed above 15mb/s & I have tried modifying the cache_Stripe_size from 256 to 8192.My read speeds are great burst at 120mb/s & stable at about 60mb/s.The only other possiblility is it could be my HDs which I read causes slow writes not sure if thats true though. point me in the right direction so I can fix this issue as I don't want to move to the dark side (Windows) .
So i am very new to linux based OS. Just started getting used to the terminal. but my problem is i am trying to install a game on steam and it is downloading very slow. i am used to getting close to 700 kb/s on windows 7 but on ubuntu 11.04 i am only getting 170-180 max. now i have searched all over and tried to fix it on my own but i just cant figure it out and am getting very frustrated. so if anybody has an idea as to how to fix this it would be greatly appreciated. (have looked through the forum by the way but as i said im new to linux and im not actually sure if im looking at the right things) but im using a wired connection. it says im connected to something called auto etho. and there is something called a loopback connection or something like that.
I'm running 11.04. I have brought a new WiFi adapter, ralink rt2070. When I browse the internet, it takes a long time to load a webpage. When I download updates, it goes at 3,060 BYTES a second. Is there any solution? I'm using the default rt2800usb driver.
I am experiencing very slow speed with the Intel 5300AGN on a Dell Studio XPS notebook and the iwlagn driver. I'm using Fedora 12 with all the latest updates available. When connecting to a G network with WPA2 security, everything goes fine at "normal" speed. When connecting to a N network with WPA2 security, the download speed falls between 0 k/s and 20 k/s max. The connection speed (as stated by Network Manager and iwconfig) is between 0 kb/s (?) and 11 Mb/s during the same session. I'm can't connect through ssh or download with scp (stalled). Web pages take a lot of time to render.
When connecting to the same N network on Window 7, everything runs fine enough. Every N network I try is the same story. Works fine on windows, badly on F12..
I have problems with my network speed when i ping my proxy server I end up getting a high packet loss generally more than 30%.I have tried to use various network monitoring softwares like etherape, wireshark, tcpdump but I am not able to get to the bottom of the problem.basically I am trying to find out where the lost packets are going.
A lot of people have the problem to find themselves with Lucid Lynx 10.04 and experience massive issues when connecting to wireless - me too. As a service, here some relevant links which promise relief:
I tried all of them, and none reliably worked. Every solution which required re-association wtih the AP helped for some time, but nothing helped for long. First, don't let yourself fool by the disable IPv6 trap - while it is "enabled" it is acutally not used by Lucid! I have a clean install of Kubuntu 10.04 on an AMD64 Laptop with Broadcom STA driver: 03:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03) However I can reliably stabilize my connection for some time either by manually disabling WiFi with the hardware switch or disabling WiFi by software means and re-activating. This brings speed at par with Kubuntu 9.10 until some time. Can anybody confirm this behaviour?
I had a F14 samba server working flawlessly now for a quite time. Unexpectedly about a month ago the write speed slowed down around 64kbit/s and that's really slow. I haven't changed any configs, only updated the server. I've troubleshooted this from many angles: -It is not a network issue because sftp writes are good. -It is not a RAID1 issue because write speed from another directory (locally) are good. So basically samba is the only thing left.
Here's example from smb.conf: [MyShare] comment = My share path = /mnt/RAID_share writeable = yes browseable = yes writelist = +smbuser
Here's a snip from logs today: [2011/08/04 09:04:27.509273, 1] smbd/server.c:267(remove_child_pid) Scheduled cleanup of brl and lock database after unclean shutdown [2011/08/04 09:04:47.526336, 1] smbd/server.c:240(cleanup_timeout_fn) Cleaning up brl and lock database after unclean shutdown [2011/08/04 09:17:57.634660, 1] smbd/server.c:267(remove_child_pid) Scheduled cleanup of brl and lock database after unclean shutdown [2011/08/04 09:18:17.635196, 1] smbd/server.c:240(cleanup_timeout_fn) Cleaning up brl and lock database after unclean shutdown .....
I am having trouble with my home network, from one computer to another both using wireless g (Ubuntu 10.04) what transfer rate should I expect/hope for when copying a file from one computer to another? My speed is consistently 220 KBps am I correct in assuming this is pretty bad?
Upgraded from 9.10 to 10.04 Thursday night. My internet was working perfectly under 9.10, but when I turn my comp on friday morning, my internet speed has been crippled to almost a halt.
In short, I get about 25 kb/s average speed, when it doesn't completely drop me. Under 9.10, I had 250+ kb/s. Why is this? I figure it has to be a bug, but is there any way to fix it? It's rendering my ubuntu install completely useless. I'm lucky I got my windows partition fixed, or else my laptop would be more or less a paperweight for a while. This is on the same laptop by the way, same internet connection.
When i try to copy files from my samba server (Ubuntu 9.10) to my windows seven media center, the speed is extremely slow. So slow that is better to download 100mb file from the internet, than from my lan. And on my lan, every card and switch is at 1000 mbps speeds on cat5 cables. And from XP or other linux machine
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.
The GUI on nautilus is painfully slow to work with. Every time I drag and drop a file I have to wait for the nautilus to slowly shade the whole file window . . . . . . . before it stops and lets me drop the file. I searched for a way to turn off this "animation", but found nothing.
I've tried pcman, but it wouldn't open my files. Thunar insists on copying files instead of just moving them.
I recently got karoo broadband installed, the speed is normally 8mbps but the longer I am connected to my router the slower it gets, I have to disconnect and reconnect to the router to get back to full speed, is this due to a bad wireless driver or do I need new drivers or a better router.
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 have installed Ubuntu 10.10 on my Dell Latitude D830 laptop using the Wubi installer. Everything seems to be working fine except for my wireless connection. When I plug in my wired connection and test on speedtest.net I get download speeds of 20MB/second. However, when I switch to my wireless connection, I barely break 1MB/second. I have an Intel PRO/Wireless 3945ABG wireless adapter. I have scoured this forum, Google, everywhere I can think of to find a solution and none seem to work for me. I love Ubuntu but this might be a deal breaker...