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zombor
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Joined: 05 Nov 2004
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 Posted: Wed Feb 08, 2012 4:44 am Post subject: Iwlwifi - direct probe timed out |
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Hello-
I'm using pf-sources 3.2.3 for my Lenovo X1. It has a Intel Centrino Wireless-N 1000 wireless card in it, using the iwlwifi driver.
The driver+firmware finds the hardware perfectly fine. I have two APs in my house.
When I scan, sometimes it doesn't find the APs, which are well within range. If I try and connect, I get this kind of error message: http://en.gentoo-wiki.com/wiki/Iwlwifi#Authentication_with_00:ef:dd:cc:bb:aa_timed_out
My APs do not have MAC based access control on them.
If I'm right next to one of the APs, I can sometimes connect to it, but the connection drops out after a few minutes, and I still get the scanning problems listed above.
I don't really know what could be wrong, anyone have any ideas? |
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Gusar
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Joined: 09 Apr 2005
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Location: Slovenia
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zombor
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Joined: 05 Nov 2004
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| Posted: Wed Feb 08, 2012 12:41 pm Post subject: |
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| I took a look at the diff, and it doesn't match up with my source. Is there an older version other than 3.2.3 that is more stable? Looks like this patch is for 3.3-rc? Also, reading through the thread, it doesn't look like the same behavior I'm getting. |
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Gusar
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| Posted: Wed Feb 08, 2012 12:49 pm Post subject: |
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| Connection dropping out, that's what the patch fixes. It's for 3.3-rc, yeah. But are you saying it doesn't apply to 3.2? |
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zombor
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Joined: 05 Nov 2004
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| Posted: Wed Feb 08, 2012 12:52 pm Post subject: |
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| Gusar wrote: | | Connection dropping out, that's what the patch fixes. It's for 3.3-rc, yeah. But are you saying it doesn't apply to 3.2? |
I tried applying the patch by hand (On the train with no ethernet), and the hunks don't seem to match up. Surrounding code doesn't match. |
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Gusar
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| Posted: Wed Feb 08, 2012 12:57 pm Post subject: |
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Yeah, I checked myself just now. Well then, you know what to do - try 3.3-rc with the patch applied, see if wireless works then.
Other possibilities: Turn off N functionality (module parameter 11n_disable=1). Or turn off hardware encryption (module parameter swcrypto=1). That last one I think will do the trick. |
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zombor
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Joined: 05 Nov 2004
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| Posted: Wed Feb 08, 2012 10:17 pm Post subject: |
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| Looks like upgrading to 3.3.0-RC-2 fixed the problem. I'll just stay on this kernel until it's in pf-sources, then I'll move back onto it. |
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zombor
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| Posted: Thu Feb 09, 2012 1:38 am Post subject: |
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Spoke too soon. It seems to work with my phone wifi tethering, but I get the same behavior with my home routers.
I applied the patch, and get the same behavior. |
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zombor
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Gusar
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| Posted: Thu Feb 09, 2012 1:35 pm Post subject: |
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| Did you try swcrypto? I'm quite sure it'll fix it. Of course that still means there's a bug, wireless cards should do encryption in hardware. But there was a rewrite of hwcrypto in iwlwifi recently which apparently doesn't fully work, so swcrypto can be used as a workaround until it gets fixed. Discussion about that: http://article.gmane.org/gmane.linux.kernel.wireless.general/85047/ |
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zombor
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Joined: 05 Nov 2004
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| Posted: Thu Feb 09, 2012 1:36 pm Post subject: |
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| Gusar wrote: | | Did you try swcrypto? I'm quite sure it'll fix it. Of course that still means there's a bug, wireless cards should do encryption in hardware. |
The APs I'm connecting to aren't using encryption. |
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