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Ubuntu 8.04 internet is flaky... google works, other sites dont

post #1 of 11
Thread Starter 
I can get to Google, Google maps, all of the other Google sites, but any other site I try to go to does not work. Google searches work too, even random stuff, so i know it isn't cached. I wanted to set up this extra quad rig I have to fold on linux. I am running off the same router as my PC, and my PC gets all sites without a hitch. this is using the default Firefox 3.0b5 that comes with Ubuntu 8.04. i cant get to package manager or to any other websites so i cant install Firefox 2 (without downloading it to a thumb drive, and I am lazy at this point... i don't think its the browser anyway)

This is a fresh install of Ubuntu 8.04 LTS, brand new from scratch. I am using roaming internet settings at the moment, but I have also tried both manual and via DHCP without success. This is the 2nd clean install of Ubuntu 8.04 I have tried to alleviate the problem.

Also of interest... when i do a reload in synaptics package manager, I get like 4 out of 15 as "successfully reloaded", but the rest fail. I'm not sure whats going on. The Windows box I am on now, my MacBook Pro, and all of the other computers on this router all have the same DNS servers and search domain (sd.cox.net) so i am not sure why Google would work and other sites wouldnt... it doesnt seem to be a DNS issue.

Anyone have any ideas?
    
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post #2 of 11
Hmmm if it was a DNS problem you would not get any pages, are you connecting via wireless or LAN?
post #3 of 11
Thread Starter 
using a wired LAN cable

ifconfig gives me a valid IP address on a valid subnet (assigned via DHCP)

oddly the base address for my eth0 is saying "interrupt: 19 Base address:0xdead"

i havent seen that before
Edited by DJZeratul - 5/15/08 at 3:26am
    
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post #4 of 11
Can you try a wireless adapter in case it is a driver issue?

Also can you ping the router or access the router page?

Have you checked to see if it is an IP conflict?
post #5 of 11
Thread Starter 
Quote:
Originally Posted by Greg2008uk View Post
Can you try a wireless adapter in case it is a driver issue?

Also can you ping the router or access the router page?

Have you checked to see if it is an IP conflict?
no Ip issue, it is unique.

pinged the router, its working. got to the config page, working fine.

i dont have a wireless adapter for this computer.

the wired is onboard ethernet, this motherboard has a SIS 190 i believe. I know of some people with SIS onboard could not get their card to even show up, but my card shows up, and i am able to access google, so im pretty sure the network driver is alright. This is very strange though. Why google?
    
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post #6 of 11
last thing I would try is to reboot the router and then turn all the computers on, one by one and see if that works, it may just be a routing error?
Edited by Greg2008uk - 5/15/08 at 4:04am
post #7 of 11
Thread Starter 
rebooted the router, still no luck. i started the linux box first, then my windows box. all the rest of the comps are off now.

i also have now disabled ipv6 in both firefox DNS (in the about:config) and in /etc/modprobe.d/aliases

no luck

I also saw this on another website:

Quote:
Originally Posted by Ubuntu Forums
There is a bug (59331) in the kernel that stops some websites from loading.

Here is how to fix it:

You need to edit your sysctl.conf

sudo gedit /etc/sysctl.conf

add these lines and save:

net.ipv4.tcp_wmem = 4096 16384 131072
net.ipv4.tcp_rmem = 4096 87380 174760

then run this to make the change

sudo sysctl -p

try your website again.
didnt work.

Heres something else thats interesting...

Quote:
Originally Posted by My Terminal
ping cnn.com
PING cnn.com (64.236.16.20) 56(84) bytes of data.
From ubuntu (192.168.1.66) icmp_seq=1 Destination Port Unreachable
From ubuntu (192.168.1.66) icmp_seq=2 Destination Port Unreachable
From ubuntu (192.168.1.66) icmp_seq=3 Destination Port Unreachable
From ubuntu (192.168.1.66) icmp_seq=4 Destination Port Unreachable
From ubuntu (192.168.1.66) icmp_seq=5 Destination Port Unreachable
From ubuntu (192.168.1.66) icmp_seq=6 Destination Port Unreachable

--- cnn.com ping statistics ---
6 packets transmitted, 0 received, +6 errors, 100% packet loss, time 5001ms

host cnn.com

cnn.com has address 64.236.16.20
cnn.com has address 64.236.16.52
cnn.com has address 64.236.24.12
cnn.com has address 64.236.29.120
cnn.com mail is handled by 10 atlmail3.turner.com.
cnn.com mail is handled by 10 atlmail5.turner.com.
cnn.com mail is handled by 10 nycmail1.turner.com.
cnn.com mail is handled by 10 nycmail2.turner.com.
cnn.com mail is handled by 30 lonmail1.turner.com.
cnn.com mail is handled by 40 hkgmail1.turner.com.
I cant ping it, but i can get the host on it.

When I ping google... I get a response within a few ms.
Edited by DJZeratul - 5/15/08 at 3:58am
    
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post #8 of 11
and all your other computer are fine?

Sorry I am out of ideas, seems like a driver issue! I had a problem similar, I just specified the IP settings and the DNS and then it worked!

Sorry I cannot be any more help!
post #9 of 11
Thread Starter 
Quote:
Originally Posted by Greg2008uk View Post
and all your other computer are fine?

Sorry I am out of ideas, seems like a driver issue! I had a problem similar, I just specified the IP settings and the DNS and then it worked!

Sorry I cannot be any more help!
quite alright, i appreciate your help.

ive tried manual and all that without any change. this is really starting to bug.

i may end up going back to ubuntu 7.10 and seeing if that works. Or maybe I should try the 32 bit version, maybe the 64 bit driver for this onboard LAN sucks.
    
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post #10 of 11
I had problems with the 32bit drivers in Ubuntu, for my lan card, and when I went to 64 has been sweet ever since!

Good luck!
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