Ubuntu - extremely slow internet

  • Arcath
  • Graduate
  • Graduate
  • User avatar
  • Posts: 166
  • Loc: New England

Post 3+ Months Ago

I'm not sure if the problem is our Sonicwall, or if it's Comcast or something else, but when we had purchased new WinVista desktops they had unbelievably slow internet connections. This didn't seem to be a problem for Win7 or pc's that we downgraded to WinXP, only in Vista. After a while someone had given me a suggestion that worked perfectly, it was to run the following command:

Code: [ Select ]
netsh interface tcp set global autotuninglevel=disabled


Occasionally when we have a consultant or someone from the outside bring in a Vista laptop I need to run this command or their internet connection is basically crippled.

Recently I set up a couple laptops as a network troubleshooters. One is Ubuntu 11.4 the other is Backtrack 5 which is based on Ubuntu 10.4. I had set these up at home and have been configuring and testing on my home network. Now I bring them to work and I've got the same problem that the Vista machines have. My download speed is below 1k. I'm still on the lower end of skill when it comes to linux so I'm not sure where to even start to look. Can anyone suggest a command or config to help resolve this?
  • Anonymous
  • Bot
  • No Avatar
  • Posts: ?
  • Loc: Ozzuland
  • Status: Online

Post 3+ Months Ago

  • Arcath
  • Graduate
  • Graduate
  • User avatar
  • Posts: 166
  • Loc: New England

Post 3+ Months Ago

never mind, after a little more searching I found it.
  • Arcath
  • Graduate
  • Graduate
  • User avatar
  • Posts: 166
  • Loc: New England

Post 3+ Months Ago

the solution in case anyone else might need it:

edit the /etc/sysctl.conf file and add the following line:

Code: [ Select ]
net.ipv4.tcp_window_scaling=0
  • Bigwebmaster
  • Site Admin
  • Site Admin
  • User avatar
  • Posts: 9089
  • Loc: Seattle, WA & Phoenix, AZ

Post 3+ Months Ago

Thanks for letting us know the solution you found, hopefully this helps someone else out down the road. Glad you were able to resolve things too :)
  • a4asit
  • Kalkin
  • Graduate
  • User avatar
  • Posts: 114
  • Loc: India

Post 3+ Months Ago

thanks a lot arcath! :)

i was facing a similar issue.. now solved. save the resolution issue ubuntu seems perfect for me now.

regards
asit

Post Information

  • Total Posts in this topic: 5 posts
  • Users browsing this forum: No registered users and 101 guests
  • You cannot post new topics in this forum
  • You cannot reply to topics in this forum
  • You cannot edit your posts in this forum
  • You cannot delete your posts in this forum
  • You cannot post attachments in this forum
 
 

© 1998-2014. Ozzu® is a registered trademark of Unmelted, LLC.