IGMP (multicast) problem

[TriStone]

windows xp don't respond IGMP packets to confirm membership in multicast
group. so when one member check out from the group all win xp computers are
disconected too. linux, windows 95/98/2000 works fine
anybody knows any solution?
thanks

 

[Guest]

do you have the latest sp, any lan packet filtering
enabled, any firewall on xp pcs?

 

[TriStone]

sure, SP1, one special hotfix for IGMP (not publicaly downloadable, received
via email from MS), FW disabled, no aditional filtering, maybe some default
in win xp, but i cannot find any

TriStone

 

[RBob]

Did anyone figure a solution for this IGMP reply issue? I am hitting with this issue. Please share any idea you have.