It's back: ath0: stuck beacon; resetting (bmiss count 4)

[Darren]

I know this bug was reported and fixed in FreeBSD10, however it is back.

ath0: stuck beacon; resetting (bmiss count 4)
ath0: stuck beacon; resetting (bmiss count 4)
ath0: stuck beacon; resetting (bmiss count 4)


wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 18:a6:f7:94:80:18
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
status: running
ssid johnston channel 11 (2462 MHz 11g) bssid 18:a6:f7:94:80:18
regdomain 20 indoor ecm authmode WPA privacy MIXED deftxkey 2
AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 27 scanvalid 60
protmode CTS wme burst dtimperiod 1 -dfs
groups: wlan 


running this card: http://www.tp-link.com/us/products/details/cat-5519_TL-WDN4800.html

ath0 at pci0:6:0:0:	class=0x028000 card=0x3112168c chip=0x0030168c rev=0x01 hdr=0x00
vendor     = 'Qualcomm Atheros'
device     = 'AR93xx Wireless Network Adapter'
class      = network


FreeBSD asrock 12.0-CURRENT FreeBSD 12.0-CURRENT #5 r315684: Wed Mar 22 11:35:19 EDT 2017     darren at asrock:/usr/obj/usr/src/sys/DARREN  amd64