PLA6456 powerline adaptor blocking iTunes Home Sharing discovery?

I am using two of the PLA6456 powerline adaptors, and whenever I am connected to that part of the network, I can't see my iTunes library on Apple's Home Sharing.  The iTunes library is no longer discoverable.  On other parts of the network without the powerline adaptors, it is discoverable.

I'm not sure what's going on.  Is the PLA6456 blocking Bonjour / mDNS network traffic?


#PLA_Mar_2020