wi hostap speed

Hello
i have question about %subj%
maybe it was anounced (sorry), but i didn't find anything about it ..
if I have
media: IEEE 802.11 Wireless Ethernet autoselect <hostap> (DS/2Mbps <hostap>)

i can download data from interface only at 2Mbps, but upload to 
interface works at 11Mbps
i tryed to switch it to
ifconfig wi1 media DS/11Mbps mode autoselect mediaopt hostap
but i got the same result
media: IEEE 802.11 Wireless Ethernet DS/11Mbps <hostap> (DS/2Mbps <hostap>)

is it bug of wi driver that in hostap mode it can't run in 11Mbps ?
i have

FreeBSD 5.2-CURRENT #0: Sat Dec 13 11:00:24 CET 2003

wi1: 802.11 address: 00:10:c6:18:52:8e
wi1: using RF:PRISM2.5 MAC:ISL3874A(Mini-PCI)
wi1: Intersil Firmware: Primary (1.1.1), Station (1.7.4)
wi1: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps

thanks for reply
Jiri