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I've been using Ubuntu for a few weeks now, and since then I've been unable to solve my wireless problem. Every time time I run some intense networking like DL and streaming my wireless crashes, or if I just give it enough time it crash as well. My only option is to reboot my computer. I've been trying a bunch of different solutions to no avail.

Here what I get when I run iwconfig when it's still working : 

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"freebox_ISPCGS"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 00:24:D4:63:66:64   
          Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-35 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

eth0      no wireless extensions.

MY computer is a Compaq Presario CQ56 with a RTL8191SEvA Wireless LAN Controller

Jorge Castro
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Mehdi Meziri
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1 Answers1

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This is a confirmed bug. It affects me also. See here...

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1000208

11.10 is fine. 12.04.1 has this issue when under load the wifi will disconnect and pc needs a reboot. Windows 7 is ok. Load via a speedtest or torrent for example.

david
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