PPPoE and IGMP issue

Hi all,

noone who can assist a bit?
Also with the new version 6.48.3 i am not able to run my Iptv . It works 10 seconds and then hang up - think when change to Multicast,
example – in the debug log for igmp-proxy there comes the message :

ignoring request from unknown adress -“alternative-subnets” configuration my be required
destination=239.255.255.250
source : 192.168.x.x (IP from the decoder TV)

to make it easy i directly put the decoder to the MT eth5 (uplink ppoe on eth1) and creaet a own vlan for that with dhcp. As it works for 10 sec the network is all ok.

Thanks a lot for a bit help in that

set igmp-proxy with uplink pppoe and the known adress form provider for MC as alternative subnets upstream
my Tv vlan is set as querier

the bridge is set with IGMP Snooping and there igmp v3 MC Router Permanent no entry at MC querier