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I just installed Kubuntu on my laptop and it's working fine so far, except the wireless connection is not switched on after waking up from sleep. I do have to click "Enable wireless" so that it reconnects.

For that matters, my laptop is an Asus N56VZ and the wireless connection requires Personal WPA2.

Thanks in advance.

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I think you should check the power management options. You'll probably find something there about disabling wireless when it goes to sleep. – Joseph R. Nov 10 '12 at 20:13
Thanks, the problem is solved now. Indeed it looks to have disappeared after uninstalling powertop. Other users may encounter similar problems with alternatives as well. – tiktak Nov 18 '12 at 10:34
Answer your own question, so others looking for it won't see "0 answers"... – vonbrand Jan 24 '13 at 18:08

It appears powertop was responsible for disabling the Wifi connection. Uninstall it / Configure it and you'll get your Kubuntu box automatically reconnect to Wifi after waking up from sleep.

Have a great day!

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I know this isn't exact to your issue, but it's along the same lines. You could still benefit from using powertop by possibly adding a small script like what is mentioned in this thread. – Josh Blair Jan 25 '13 at 18:56
You should also accept this answer, so everyone knows the question has a solution now. – Risto Salminen Nov 21 '13 at 11:23

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