Late 2011 Mac Book Pro i5 8gb RAM macOS High Sierra
(UK based) (1) Virgin Media Hub 3.0 > TpLink AV500 power line extender > Ethernet cable to Core Machine.
(2) as (1) above and 20 metre Cat6 Ethernet from Virgin Media Hub 3.0 to Wavlink WL-WN531G3 and then iPad Pro and iPhone 12 connected by WiFi to wavlink.
(3) Roon core via usb to RME ADI-2 DAC
(4) iPad Pro (as end point) airplay to B&W A5
(5) Roon core streaming to Sonos Beam controlled by ipad and iphone.
1400 Albums - 16800 Tracks
Description of Issue
In network (1) above when the ipad + iphone is connected to the Virgin Media Hub by wifi it works perfectly. The IPad and iphone can be used as audio zones.
In scenario (2) the ipad and iphone connect to the roon core and can control music being played on audio zones (i.e. DAC and Sonos beam) but can’t be used as audio zones themselves
How do I enable the ipad and iphone to be used as audio zones in scenario (2) above? Both Iphone and Ipad are on ios14.5.1