I can connect to my wifi but i can't surf in the internet

While connected to your WiFI, please post whatever outputs when you issue the command below on your terminal:

ifconfig

and the command,

netstat -rn

It could be a DNS problem. Try these commands in a terminal and paste the results:

ping -c5 209.85.229.103
ping -c5 91.189.89.223

If these commands work, take a look at this: http://www.cyberciti.biz/faq/ubuntu-linux-configure-dns-nameserver-ip-address/

layer@slayer-laptop:~$ itconfig
No command 'itconfig' found, did you mean:
 Command 'iwconfig' from package 'wireless-tools' (main)
 Command 'htconfig' from package 'global' (universe)
 Command 'ifconfig' from package 'net-tools' (main)
 Command 'qtconfig' from package 'qt3-qtconfig' (universe)
 Command 'qtconfig' from package 'qt4-qtconfig' (universe)
itconfig: command not found
slayer@slayer-laptop:~$ netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0
slayer@slayer-laptop:~$ ^C
slayer@slayer-laptop:~$

After ping -c5 209.85.229.103
         ping -c5 91.189.89.223

slayer@slayer-laptop:~$ ping -c5 209.85.229.103
PING 209.85.229.103 (209.85.229.103) 56(84) bytes of data.
64 bytes from 209.85.229.103: icmp_seq=1 ttl=49 time=80.2 ms
64 bytes from 209.85.229.103: icmp_seq=2 ttl=49 time=82.0 ms
64 bytes from 209.85.229.103: icmp_seq=3 ttl=49 time=86.0 ms
64 bytes from 209.85.229.103: icmp_seq=4 ttl=49 time=82.2 ms
64 bytes from 209.85.229.103: icmp_seq=5 ttl=49 time=83.9 ms

--- 209.85.229.103 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4004ms
rtt min/avg/max/mdev = 80.208/82.889/86.032/2.000 ms
slayer@slayer-laptop:~$ ping -c5 91.189.89.223
PING 91.189.89.223 (91.189.89.223) 56(84) bytes of data.
64 bytes from 91.189.89.223: icmp_seq=1 ttl=50 time=83.5 ms
64 bytes from 91.189.89.223: icmp_seq=2 ttl=50 time=85.7 ms
64 bytes from 91.189.89.223: icmp_seq=3 ttl=50 time=86.6 ms
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable

--- 91.189.89.223 ping statistics ---
5 packets transmitted, 3 received, 40% packet loss, time 4014ms
rtt min/avg/max/mdev = 83.541/85.327/86.644/1.309 ms
slayer@slayer-laptop:~$

i am new at linux i don't know anything about these OS. So i will do everything you tell me.

I Still Need an Answer. Nothing of the comands work for me.

just to clear things up, does your wired connection work? and does your wireless work in vista?

Hi
This has been a problem with Karmic, I had the same problem myself..... But there is a fix.
can you use your LAN to do the updates.
go to
System-Administration-Update Manager.
do the updates if you have a problem updating.
go to System-Administration-Software Sources click on "Download From" then "Other", click on "select best server", let it run then select the one it suggests, (the Choose Server button) or you can select a server from your country. then "close" then "reload", let it run. then back to updates.
Should be all good after that

Welcome to Ubuntu
Regard Neil

Yes. My Lan connection is working on vista and ubuntu without any problem.The problem is in the WiFi.I do the thing that Neil(10x dude) said.After updating i connect to my WiFi on Ubuntu with the wireless modem and type something in firefox (ex:facebook) and then firefox shows me all the pages. I try to open the facebook and the page freezes. The only thing that i can see is the white screen.I tried several times with other webpages but no result. But the strange thing is that my skype is working and i recive chat messeges and calls, i even talk with my girlfriend about 10min without any problem, so i have wifi internet connection but i can't surf the web.I also tried continue downloading a torrent with BitTorrent(ubuntu torrent downloader) and the speed was about 15kb. My normal speed is about 80kb.

From the results of the ping command, you seem to have a DNS problem, in other words your connection can't translate URLs into an IP directions. That's the reason cause you can use some services and other don't.

To change the DNS server, right-click on the Network Manager (the wifi icon at the top right) and select wifi, properties. You will come to a window like this: http://static.yeticode.co.uk/blog/images/posts/three_co_uk_broadband.png. There you can change the DNS, for example you can try these: 208.67.222.222 or 208.67.220.220

Also take a look at a similiar problem: https://answers.launchpad.net/ubuntu/+question/2248

I try it but doesn't work.

This happened to me a lot. Ubuntu sometimes shows full connection but
you still can't connect to the internet. This is because there is no
connection what-so-ever. I would suggest trying to call your wifi
company and tell them about this. Also you could try to move your
laptop closer to your internet source (this may just do the trick!)

On Sun, Mar 14, 2010 at 8:20 AM, Slayer666
<email address hidden> wrote:
> Question #102424 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/102424
>
>    Status: Answered => Open
>
> Slayer666 is still having a problem:
> I try it but doesn't work.
>
> --
> You received this question notification because you are an answer
> contact for Ubuntu.
>

--
Regards,
Sonny Dhillon