Question about TC API with XP

Hi,

My machine has one NIC connected to a LAN , and another NIC connected to a WAN
when I use the TC API for dscp tagging for my outgoing packets (WAN) it doesn't work.
I must disable and enable myNIC connected to a LAN if I want to use QOS.
andwhen I use the TC API for dscp tagging for my outgoing packets (LAN) it doesn't work
I must disable and enable myNIC connected to a LAN.
I want to know if is a mistake of me or if is a problem with windows.

And I have always the problem with dscp tagging and multicast

please help me
thank's

[889 byte] By [youss_75019] at [2008-1-9]