Internet connection is so bad on my linux mint, but good on windows 7 and windows xp and on mobile, why?

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QUESTION :

I dual booted my xp, installing linux mint, My connection is so bad on my linux mint, but good on windows 7 and windows xp and on mobile.

speedtest.net results on my linux mint 12

Ping: 200ms
Download speed: 4.08 Mbps
Upload speed: 0.08 Mbps

All the websites are opening fast on my mint but some of them are not opening the right way, and some websites are not opening at all. I haven’t been able to open SO this week. Now SO is opening as normal

This is how github is opening

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This is how youtube is opening:

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Do you know why I’m having this error? I don’t have any antivirus, i am using default firewall settings, i have apache python django php ruby java and some stuff installed. But i don’t think this is the cause.

I tried google chrome and firefox and this issue is on both browsers. I didn’t have this issue last month. any guess? My isp cannot help me coz he’s a windows guy and he’s only responsible for fixing networking errors, not personal problems.

ANSWER :

Sounds like a DNS issue. What are your settings in /etc/resolv.conf?

Try using OpenDNS servers: 208.67.222.222 and 208.67.220.220

A wild guess why your github opens like that, maybe you have javascript disabled on your browser…maybe not because you tried two browsers…

check ping www.github.com, is there any packet loss. Run it for a long time, maybe 3-4 mins and see how many packets are lost.

check your drivers on Linux for the wireless device(if you are on wifi). I am not familiar with mint so cannot tell you exactly how to do that. Google for a right driver.

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