Hi there,
I am currently installing a setup of four Connect Spark Pro.
I would like to use the Multicast option to reduce network load, because the four sources need to be streamed to three destination PCs. (which would make 12 4k streams in total in unicast mode)
I am using a HPE 1850 Series Switch to connect all devices. IGMP snooping is enabled.
The video streams are working well, however there is no audio coming through the either of the streams as soon as Multicast is enabled in the Spark Pro web GUI.
When I switch back to unicast (disable Multicast in web gui) audio is working again.

Am I missing something?

Thanks for your help, Eric