I think the first test was incorrect because I used the sta driver and the unload command (wluload) did not remove it so I got both driver working which means it's useless. I didn't find anything unusual in the logs and yes I was testing it with standard power saving on. when running 1000 pings this parameters to my router, I get: sudo ping -q -i 0.005 -s 1000 -c 1000 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 1000(1028) bytes of data. --- 192.168.1.1 ping statistics --- 1000 packets transmitted, 995 received, +6 duplicates, 0% packet loss, time 4159ms rtt min/avg/max/mdev = 1.512/2.368/20.829/1.487 ms, pipe 3 On Sun, Aug 7, 2011 at 4:55 PM, Wolfgang Kufner