Roon 2.0 cannot see Meridian endpoints

Updated to Roon 2.0, but neither of my Meridian endpoints are now seen by Roon. They aren’t listed in audio zones and aren’t available in settings>audio.

I now have a Roon server with no decent means of listening to music (except Chromecast and local iOS)!

Prior to this, Roon has always been 100% reliable including through many previous updates.

  • Details on your Core machine
    NUC 8 with ROCK OS v1.0 build 227
    Roon 2.0 build 1128
    Ethernet connection to network switch

  • Details on your Remote(s)
    iPhone 12 Pro Max iOS 16.0
    iPad Pro iPadOS 15.7

  • Networking details:
    Draytek Vigor 2860 router
    Netgear gigabit switches
    Ruckus unleashed wi-fi

  • Audio devices in use
    Meridian ID41 with Ethernet connection to switch
    Meridian 218 with Ethernet connection to switch
    Sony TV with built-in Chromecast with Ethernet connection to switch
    (everything is hardwired except iOS remote devices, both Meridian devices can be seen on the network by the Meridian iOS IP control app)

  • Library details
    SSD second drive in NUC

…and yes have restarted NUC, all network devices and both Meridian endpoints