Please look at the following FreeBSD thread and the fix they borrowed from OpenBSD.
http://forums.freebsd.org/showthread.php?t=38685 I have precisely same wireless hardware and precisely same description of issue (packet loss) with NetBSD 6.1 i386. Just like above thread I too have no packet loss on Linux with the same hardware and router. Is the issue and the fix suggested on above thread applicable to NetBSD? Mayuresh.
