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Date: Sat, 4 Dec 2010 22:21:03 -0800
From: Steve Kargl <sgk@troutmask.apl.washington.edu>
To: freebsd-current@freebsd.org
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Subject: wlan0 going UP/DOWN problem
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It seems some recent change (as in the last 7-10 days)
has caused an instability in wlan0.  Just a small
excerpt from /var/log/messages,

Dec  4 18:54:16 laptop kernel: wlan0: link state changed to UP
Dec  4 19:11:16 laptop kernel: wlan0: link state changed to DOWN
Dec  4 19:11:16 laptop kernel: wlan0: link state changed to UP
Dec  4 19:19:46 laptop kernel: wlan0: link state changed to DOWN
Dec  4 19:19:46 laptop kernel: wlan0: link state changed to UP
Dec  4 19:37:01 laptop kernel: wlan0: link state changed to DOWN
Dec  4 19:37:01 laptop kernel: wlan0: link state changed to UP
Dec  4 19:45:31 laptop kernel: wlan0: link state changed to DOWN
Dec  4 19:45:31 laptop kernel: wlan0: link state changed to UP
Dec  4 19:54:01 laptop kernel: wlan0: link state changed to DOWN
Dec  4 19:54:01 laptop kernel: wlan0: link state changed to UP
Dec  4 20:11:16 laptop kernel: wlan0: link state changed to DOWN
Dec  4 20:11:16 laptop kernel: wlan0: link state changed to UP
Dec  4 20:19:46 laptop kernel: wlan0: link state changed to DOWN
Dec  4 20:19:46 laptop kernel: wlan0: link state changed to UP
Dec  4 20:36:46 laptop kernel: wlan0: link state changed to DOWN
Dec  4 20:36:46 laptop kernel: wlan0: link state changed to UP
Dec  4 20:45:16 laptop kernel: wlan0: link state changed to DOWN
Dec  4 20:45:16 laptop kernel: wlan0: link state changed to UP
Dec  4 20:53:46 laptop kernel: wlan0: link state changed to DOWN
Dec  4 20:53:46 laptop kernel: wlan0: link state changed to UP

So, every 18 minutes the devices is going DOWN/UP. :-/

-- 
Steve