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after install a fresh Ubuntu LTS 12.04 (Precise Pangolin) in my Samsung Series 9 NP900X3A the wireless network become super unstable.

After boot I can only connect for a few seconds and traffic stops to flow but the wireless stays connected.

I believe my driver is Intel Ultimate-N 6300, and my router is Thomson TG784n.

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Is traffic absolutely stopped or is it just repeatedly interrupted or very slow? –  Karl Frisk Sep 22 '12 at 15:42
    
absolutely stopped (in and out), I checked in System Monitor -> Resources -> Network History –  Francisco Costa Sep 23 '12 at 15:55
    
OK, then it seems to be an different issue compared to this bug which has to do with wireless-n networks and the hardware crypto implementation. Maybe you can try playing around with the module parameters for iwlwifi anyway... –  Karl Frisk Sep 23 '12 at 20:45
    
when i run this "sudo modprobe -r iwlwifi && sudo modprobe iwlwifi 11n_disable=1" it seams to become more stable –  Francisco Costa Sep 24 '12 at 0:12
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