ALB Teaming and multicast

Hello all,

I've a server with two "Intel(R) 82576 Gigabit Dual Port Server Network Connection".

For redundancy purpose I've decided to team together these interfaces.

I use TS reader to get a multicast flow but when the team is configured in ALB mode (with RLB disabled), the flow received is regularly lost

https://dl.dropbox.com/u/4561278/ALB_capture.PNG

Do you have any idea of what can cause this ?

Thanks.