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I upgraded to 13.10 but now my laptop won't connect to wifi any more. I can see there are plenty of questions and answers around but my biggest problem is that I've only been using ubuntu for about a month and before that it was all windows and honestly I have no idea what I'm doing. Except to restart, I restarted. I wouldn't mind going back to 13.4 but I don't know how to -_- I can connect with a wire (and stay connected wirelessly for a while after that O.o) but that's it. I... also don't know how to check what my wireless card is. Clearly I should have waited with the upgrade but it's late for that advice now so, can anyone help?

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Please open a terminal Ctrl+Alt+t and run: lspci -nn | grep 0280 Please edit your question to add the result which is the needed details of your wireless card. –  chili555 Oct 27 '13 at 20:38

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