To: linux-wireless@vger.kernel.org
From: Dennis New <dennisn@dennisn.mooo.com>
Subject: Re: wlan0 keeps deauthenticating DEAUTH_LEAVING about every minute
Date: Sun, 26 Mar 2017 13:43:24 -0400
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        <77d7e7a0-b529-ad29-9584-da51c68a5917@lwfinger.net>
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On Sun, 26 Mar 2017 11:00:12 -0500, Larry Finger wrote:
> ...  provide information regarding what specific card you have. The
> appropriate stanza from "lspci -nn" has that information.
> 
> I do not normally run a b43 wireless NIC, but I did pull out an
> ancient laptop that uses the PCMCIA version of a BCM4318 with PCI ID
> of 14e4:4318. Running kernel 4.10.0, I do see periodic drops. My
> period is 120 sec and the drop is a reason 7, not reason 3 as you
> see. Another difference is that I see the drops with kernel 4.8.0 as
> well. With the earlier kernel, the drop period is closer to 60 sec,
> but it is not as regular.

Huh. I also have that BCM4318 card, but not PCMCIA.

06:02.0 Network controller [0280]: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller [14e4:4318] (rev 02)
        Subsystem: AMBIT Microsystem Corp. Aspire 3022WLMi, 5024WLMi, 5020 [1468:0311]
        Flags: bus master, fast devsel, latency 64, IRQ 9
        Memory at c0304000 (32-bit, non-prefetchable) [size=8K]
        Kernel driver in use: b43-pci-bridge

These past few days I seem to have had some "success" by simply
putting a 60 second sleep in my bootup scripts before bringing up
my wlan0 interface. (Ie. I haven't been getting any deauths after
doing this.)