I have setup a Smart hub with three Chromecast Audio devices on the 5ghz network. I have split my 2.4GHZ and 5 GHZ networks and turned off the BT smart setup . However chromecast audio operation seems very unreliable compared to my HH4. I can often/sometimes send music to individual devices but only rarely to all thee defined as a group.
Is anyone else having problems with Chromecast audio devices connected to a smart hub.