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I am a student. My laptop has both windows7 and ubuntu 12.10. In school, with school wifi, both OS are working well.

But in the hostel, with hostel wifi, Ubuntu only works for about 4 to 5 min and although it appear connected, the webpage does not load. ping google appear 5-digit. I switch to windows and it works.

Is there any suggestion?

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This seems to be a problem with the hostel wifi network, not with your laptop... – Sander Steffann Jan 25 '13 at 10:25
ya i know.. but windows can access internet quite fast.. why ubuntu cannot.. – pspencil Jan 25 '13 at 10:52

Just click on your network icon from top right and click on the network name which gets disconnected. I used to face and still face this problem. Actually clicking on your network name refreshes the network and hope it will start working again in your case...

Note : Its working for me.

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It used to work for me in Win7, refreshing the network. but I tried refreshing and it just doesn't work.. still Thanks. – pspencil Jan 25 '13 at 13:14
Click on the network name from the menu bar from top right corner and it will refresh the network. – shivamDev Jan 26 '13 at 17:43

Try refreshing your network when you get home.

If it does not work, deactivate your wireless network then try adding it again. If you recently installed a new software, you may as well try uninstalling it and see if that changes anything.

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I even tried reboot.. it doesn't work. the wireless dies after a while.. or from the start. i try reinstall ubuntu the problem persists. – pspencil Jan 25 '13 at 13:14

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