freebsd stable - Nov 2010 - what is best FreeBSD-based 802.11b/g/n AP package for Ubiquiti and Tranzeo gear?

We are seeing the "stuck beacon" problem and the  NETDEV WATCHDOG
problem on Rocket M2 and Bullet M2 running AirOS 5.3-beta2 and the
"stuck beacon" problem on Bullet 2 HP running AirOS 3.5.1

Does anyone have a recommendation for a solid FreeBSD-based
802.11b/g/n AP package for the Ubiquiti family and for the Tranzeo
EX2-8?

Your input is really appreciated.

kind regards/ldv

Larry Vaden
Internet Texoma, Inc.
Serving Rural Texomaland Since 1995
We Care About Your Connection!

XM.v5.3-beta2.6873.101018.1811# dmesg | grep -i "stuck beacon" | wc -l
91

[94009.052000] ath_bstuck_tasklet: stuck beacon; resetting (bmiss count 9)

XM.v5.3-beta2.6873.101018.1811# dmesg | grep -i "watchdog"
[ 7945.985000] NETDEV WATCHDOG: wifi0: transmit timed out
XM.v5.3-beta2.6873.101018.1811#