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I've installed Ubuntu 12.04 on a new Compaq cq58 laptop. After installing Ubuntu wifi dind't work, but following instructions on the forum I could install the drivers and make it work....now after updating wireless stopped working...I don't know what to do now...

~$ sudo rfkill list all


0: hp-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hp-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no


~$ lspci -nn | grep 0280
04:00.0 Network controller [0280]: Ralink corp. Device [1814:3290]
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Sometimes the driver needs compiling every fresh kernel. Depends what instructions you followed... –  fleamour Jan 24 '13 at 14:46
    
Welcome to Ask Ubuntu! "following instructions on the forum" Please include these instructions as it is very relevant to your question/issue. And have you tried re-running these steps? –  gertvdijk Jan 24 '13 at 15:35

1 Answer 1

I got the answer here maybe you'll receive when you update that the key is not available key run this sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553

in my case 8B48AD6246925553 is the key that I received with the error after update

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it's not immediately clear how this answers the question. please provide a summary of the info at the link. –  amc Aug 26 '13 at 21:36

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