If using MusicCast for streaming, you will also need to ensure that IGMP multicast packets are allowed to 224.0.0.22 (with IP options allowed) from the MusicCast speaker/AVR by all firewalls in place (including router firewall).
If using MusicCast for streaming, you will also need to ensure that IGMP multicast packets are allowed to 224.0.0.22 (with IP options allowed) from the MusicCast speaker/AVR by all firewalls in place (including router firewall).