Ubuntu 9.10 wireless disconnects after about 15 minutes

By markcoronado
Dec 5, 2010
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  1. I'm using Ubuntu 9.10 on a Acer Aspire 7535-5020 Laptop with a Atheros AR5B91 Wireless Network Adapter.

    This is a dual boot with Windows 7 & I have no problems staying connected with Win 7 but every time I boot into Ubuntu I loose the wireless connection after 10 minutes or so. The time varies on how long it stays connected but once it disconnects the only way to reconnect is to reboot & then it auto connects & goes thru the cycle again.
    If I connect via Ethernet I have no problem but this is a laptop so it would be nice to be able to use the wireless connection without having to keep on rebooting all the time.
    Needless to say I don't use Ubuntu very often for that reason.


    I've read on other forums, even the official Ubuntu forum of others having the same problem but I have not found a solution.

    Anyone have any ideas on what is causing this to happen?
  2. Leeky

    Leeky TechSpot Evangelist Posts: 4,378   +97

    Your best form of aid is going to be the ubuntuforum.

    From a quick check; http://ubuntuforums.org/showthread.php?t=1226678

    I would suggest following the instructions in post 2 of this thread; it seemed to work for others.

    Your wireless card is known for being problematic with Linux installs. It's probably not the news you want to hear, but maybe a good search on those forums will help you on this occasion.
  3. markcoronado

    markcoronado Newcomer, in training Topic Starter

    Thanks I'll check it out.
  4. I think that chip uses the ath9k driver which is included in the mainline kernel, it may be that a newer version of the driver than the one in your current kernel could resolve this, so upgrading to a newer kernel may be an option if all else fails.
  5. markcoronado

    markcoronado Newcomer, in training Topic Starter

    I got it to work by updating Ubuntu to version 10.10 LTS.
    Hope this helps some others that are having this problem.


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