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After reinstalling Ubuntu 13.04 Desktop on my Lenovo ThinkPad Edge e320, I got a problem with my network-card (may be because I also have openSUSE and this has the same problem). I have Intel Corporation Centrino Wireless-N 1000.

The problem. After using the WiFi-network for about 15 minutes it just switches off. I still can see the connection on the Network-Manager, but I can not load any website or ping.

  • service networking restart does not help.
  • Just switching off the currently connection and switching it on again sometimes works,
  • rebooting, too.

But I have no idea, how to get the WiFi network working stably again.

Can you help please?

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1) Is it always 15 minutes? On, 15 minutes, off? 2) How strong is the signal? 3) How far is the router / access point? 4) Are there any obstacles between it and your receiver (laptop)? 5) Is the light on - is it machine problem, signal quality... –  LIttle Ancient Forest Kami Jul 24 '13 at 17:12
1) not always, it can be from 12 to 18 minutes, but only in this interval; 2)3)4) the router is in the same room, the signal is very good, there is nothing between –  Oliar Jul 25 '13 at 13:38
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