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I've recently installed Ubuntu 10.04. After installation I've updated the system: sudo apt-get update and sudo apt-get upgrade. Everything works fine but the Internet connection. It's a wireless connection. Sometimes I can't open any web page even if the connection applet shows "connected". I have to disconnect and connect once again; then it works till the next time it breaks.

Connection is fine, I don't have any problems with that on the other computer. It's also possible it's a hardware problem - the computer is quite old and haven't been used for long time.

Thanks for any suggestion!

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closed as too localized by fossfreedom Feb 21 '12 at 21:59

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Are you still having this problem? If so, what's your network hardware, and driver? – belacqua Mar 12 '11 at 20:46
How long it remains connected ? You can also check from a live CD and see if it breaks in between. – Jamess Mar 22 '11 at 6:27
Perhaps if you could open a terminal and type 'lsusb' and 'lspci' and then paste the results back here and then we could see what we can do – andybleaden May 11 '11 at 8:47
Any useful messages in /var/log/syslog or dmesg? – user535733 Dec 19 '11 at 0:35
I don't know why, but it's first time I see all 4 comments... Anyway, the computer is now completely broken, so the queston will probably rest unsolved. Thank you all anyway and sorry for not posting here but I've just forgot about this post... Should I do something to close the thread? – maria Dec 19 '11 at 19:21