MikroTik

Hello,
i do have the following setup:
a RB750G connected to the internet on ether1
a alix board runing RouterOs 5.7 on ether3 of RB750G
and a Linksys WRT160nl connected to the alix board
ok, here we go:
i do have a Multicasting box runing Debian6 on port 4 (ether4) of my RB750G
i configured my 750G igmpproxy like:
[admin@Core01] /routing igmp-proxy> export
# sep/26/2011 22:15:32 by RouterOS 5.7
# software id = 1SZG-C1IB
#
/routing igmp-proxy
set query-interval=2m5s query-response-interval=10s quick-leave=yes
/routing igmp-proxy interface
add disabled=no interface=ether4-slave-local threshold=1 upstream=yes
add disabled=no interface=ether3-slave-local threshold=1 upstream=no
[admin@Core01] /routing igmp-proxy>
and my alix igmpproxy like:
[admin@Core02] /routing igmp-proxy> export
# jan/01/2000 03:17:40 by RouterOS 5.7
# software id = 2BMA-EBAG
#
/routing igmp-proxy
set query-interval=2m5s query-response-interval=10s quick-leave=yes
/routing igmp-proxy interface
add disabled=no interface=ether1 threshold=1 upstream=yes
add disabled=no interface=ether2 threshold=1 upstream=no
add disabled=no interface=wlan1 threshold=1 upstream=no
[admin@Core02] /routing igmp-proxy>

i didn't done anything except of IGMPProxy
and in my wrt160nl, i put eth1 (connected to alix) as a upstream and br-lan as a downstream

and i still unable to receyve multicast stream
evean if i connect directly to my alix using wifi there's no stream up
thank you for your help