Hi Anup
Many thanks first
your post is crystal clear, and i assume it’s really the heart of my problem.
it’s perhaps also an explanation why other bridge hasn’t the same problem (ie Lumin)
cause i have made the test on my home…
I have made a query for support to Dlink and to OVH (my adsl provider/r
But you are certainly right and dlink won’t let me stop IGMP. So i have to live with
all the more one of my two dlink is an audiophile upgraded 108 which is rather costly…
So my question is 
Assuming my router support IGMP, it should work ?
i have to look about parameters to activate named like “SSDP”
will i solve my problem with an appropriate router ?
regards
Pierre