Wireless broadcast/multicast has it’s own problems. In many cases it is falling from 866Mbps/2S to 6 Mbps/1S (basic rate), and from 2 radio/antenna to only one radio/antenna. And from checked delivery (with retransmit if no ACK received) to just broadcast and suppose/hope it did arrive.
But here is already another issue. “Multicast/broadcast discovery of services” outside of the L2 broadcast domain. https://en.wikipedia.org/wiki/Multicast_DNS
Used in Apple devices (Bonjour) , but also for printers, Chromecast and similar Netbios over TCP for Windows domain. This does not work over routed networks, unless helper processes are in place, as IP routing does not forward multicasts and broadcasts.
For Apple and Service discovery the mDNS helper could be “Avahi”. https://en.wikipedia.org/wiki/Avahi_(software)
For Windows Netbios over TCP (also named NBT), a WINS server was the helper, for having a Windows domain over routed networks. A Windows AD server (Active directory) manages even larger groups with it’s special DNS entries. And the NBT ports 137,138,139 have been replaced with a protocol on port 445 for Microsoft Directory services.
Here one could think of a “mDNS server” also called reflector or repeater in the LAN network (Avahi is probably just one of them). Possibly implemented as a service in RouterOS Docker container or elsewhere in the LAN? http://forum.mikrotik.com/t/container-for-mdns-repeater/158818/1
PS: one more on mDNS and Chromecast : http://forum.mikrotik.com/t/anyone-have-vlan-and-chromecast-working/159367/1