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From: Chuck Burns <chuck@thesouthernlibertarian.com>
Organization: The Southern Libertarian
To: freebsd-net@freebsd.org
Date: Tue, 4 Oct 2011 20:00:20 -0500
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Message-Id: <201110042000.20789.chuck@thesouthernlibertarian.com>
Subject: [urtw] Wifi link dying randomly. reboot required to reconnect.
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I have a Netgear WG111v2 - which is a RealTek 8187 based usb 802.11G dongle, 
and which uses the if_urtw module.

At random intervals, my internet connection just dies, I cannot ping the AP, 
am told "Network is down" by ping.

The LED light on the adapter will have also gone out, and in dmesg, I get 
"wlan: link state changed to DOWN" and nothing I can do will restart the 
connection.

Killing wpa_supplicant and restarting it does nothing.

I've even destroyed and recreated the wlan0 device and still nothing.  The 
card is effectively off.