LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 03-12-2011, 01:25 PM   #1
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Rep: Reputation: 1
Lightbulb Ubuntu limits my download speed


ok im relatively new to ubuntu and i realised that although before when i had windows7 my relative download speed was around 5.0 MB/s ( i have a 50MB virgin connection)now with ubuntu 10.10 im limited to only 2.8MB/s or somewhere around there.

First i tested my wireless speed on another laptop (with windows 7) on the same network and the speed was as i said around 5.0MB/s sometimes even more. So i thought it was only chrome that i was using at that point.However, this download speed limitation appears in jdownloader as well as in firefox and i guess the whole system.

SO im wondering if there is any way to set up the speed limit on the system and if there is, how should do i go ahead with this change,through the terminal or through preferences?

thanks
 
Old 03-12-2011, 01:33 PM   #2
corp769
LQ Guru
 
Registered: Apr 2005
Posts: 5,817

Rep: Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002
See if this helps at all:
http://ubuntumanual.org/posts/10/how...peed-in-ubuntu
 
Old 03-12-2011, 01:36 PM   #3
repo
LQ 5k Club
 
Registered: May 2001
Location: Belgium
Distribution: Arch
Posts: 8,527

Rep: Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898
How do you measure the speed?
Try to disable ipv6

Kind regards
 
Old 03-12-2011, 02:48 PM   #4
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
Smile

First of all Thank you for your help guys, im really out of my waters as i was windows user for years, so all this look a lot different to me.

Quote:
Originally Posted by corp769 View Post
I tried the sudo vim command, but i get this sudo: vim: command not found


Quote:
Originally Posted by repo View Post
How do you measure the speed?
Try to disable ipv6

Kind regards
I disabled the ipv6 and then i got a little bit higher speedtest form 22 up to 24 something. SO after disabling ipv6 i tried the speedtest

Code:
http://www.speedtest.net/result/1198392331.png
and then a minute later tried a speedtest on the windows 7 laptop and went up to 39MB/s.

Code:
http://www.speedtest.net/result/1198398251.png
so what else do you think may be affecting the internet speed?
Could it be the router (D-link 615) not being correctly set-up for ubuntu? since my housemate has a macbook pro and it wont connect to the router and in general with any mac, cause D-link hasnt bothered updating its firmware for use with mac OS. so since both OS are unix could it be that ubuntu connects but still has limited connectivity?


thanks once again
 
Old 03-12-2011, 02:51 PM   #5
repo
LQ 5k Club
 
Registered: May 2001
Location: Belgium
Distribution: Arch
Posts: 8,527

Rep: Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898
Ty to use a wired connection, to rule out the wireless.

Kind regards

Last edited by repo; 03-14-2011 at 04:46 PM.
 
Old 03-12-2011, 03:10 PM   #6
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
Wired connection does the trick as usual, speed back to 50MB,thank you
i guess that can be a short-term solution untill i figure out what exactly causes the wireless speed to be limited
Code:
http://www.speedtest.net/result/1198450293.png
however, its not really usefull to have a 20meter ethernet cable around the house, since the router is not in the room im using my laptop.

so, does anyone else have the same problems with d-link routers?

regards
 
Old 03-12-2011, 03:14 PM   #7
repo
LQ 5k Club
 
Registered: May 2001
Location: Belgium
Distribution: Arch
Posts: 8,527

Rep: Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898
You could start with disabling web or wap.
Then enable wep, then wap, and see if things change or not.
I don't think the problem is the router, but your wireless card.
Do you have the correct driver?

Kind regards

Last edited by repo; 03-12-2011 at 03:16 PM.
 
Old 03-12-2011, 03:38 PM   #8
corp769
LQ Guru
 
Registered: Apr 2005
Posts: 5,817

Rep: Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002
To add what repo said - It could also be the card itself; What kind of wireless card do you have?
 
Old 03-13-2011, 07:18 AM   #9
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
im using the laptops wlan, its a sony vaio FW21M. I just did a sudo lspci and found that i have this wlan card : Intel Corporation WiFi Link 5100

and if the card driver is not the right one, how do i change it and install an updated one? sorry if this is too much but im not so good with linux as i said before.

thank you

Last edited by makrylemis; 03-13-2011 at 07:19 AM. Reason: forgot to say thank you
 
Old 03-13-2011, 07:45 AM   #10
corp769
LQ Guru
 
Registered: Apr 2005
Posts: 5,817

Rep: Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002Reputation: 1002
You could always install compat-wireless and get the latest and greatest....
 
Old 03-13-2011, 12:53 PM   #11
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
i installed compat-wireless and then tested the speed, but still is almost half if i go wireless on my network. SO at the moment i guess is something to do with the router and im wired and happy :P

regards
 
Old 03-13-2011, 01:19 PM   #12
repo
LQ 5k Club
 
Registered: May 2001
Location: Belgium
Distribution: Arch
Posts: 8,527

Rep: Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898
Did you try to disable WEP or WAP ?

Kind regards
 
Old 03-14-2011, 06:55 AM   #13
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
i havent tried disabling WEP or WAP, im a bit concerned about the network since there are around 20 more networks available in my area. so disabling the security of the network wouldnt be risky ?

However, logging in to my router (D-link 615) i noticed that the QoS engine was enabled, and i thought this might have been the reason. NO luck in this case since disabling did not change anything to the wireless speed which still is being somehow monitored and halfed.
 
Old 03-14-2011, 08:05 AM   #14
repo
LQ 5k Club
 
Registered: May 2001
Location: Belgium
Distribution: Arch
Posts: 8,527

Rep: Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898Reputation: 898
Quote:
i havent tried disabling WEP or WAP, im a bit concerned about the network since there are around 20 more networks available in my area. so disabling the security of the network wouldnt be risky ?
It's just for test purpose, to see if the speed is ok without WEP/WAP, not permanent.

Kind regards
 
Old 03-14-2011, 04:23 PM   #15
makrylemis
LQ Newbie
 
Registered: Aug 2008
Location: London UK
Distribution: Ubuntu
Posts: 17

Original Poster
Rep: Reputation: 1
ok i disabled security on my network (WAP in my case). and with not secure network i still got half the speed. However, i realised that although i disabled the QoS engine in advanced options, there is still WMM (wireless QoS) which is ticked (enabled) and im not able to untick it, its like its permanent, it doesnt let me choose.

thanks for your help repo

regards
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] just installed ubuntu 10.10 - slow download speed hobomystical Linux - Newbie 31 02-13-2011 05:49 PM
Amazing increase in internet download speed with Ubuntu 8.10 update! lelmo82 Linux - Wireless Networking 0 11-04-2008 03:37 PM
Squid NTLM Auth Download Limits seanbenham Linux - Server 2 08-19-2008 08:27 AM
rtorrent separate speed limits stringZ Linux - Software 1 02-23-2008 10:03 AM
LXer: Manage Apache Download Speed And Traffic Limits With mod_cband LXer Syndicated Linux News 0 06-04-2006 05:54 AM


All times are GMT -5. The time now is 03:32 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration