Sonore Microrendu USB to Ayre Codex


Roon bridge running on an iMac sends files to my Ayre QX-5 Twenty digital hub, but Roon core running 24/7 on a Mac Mini tells me to select a zone and doesn't find the Ayre Codex.  When I go to the Roon endpoint table only the QX-5 and QX-8 are shown for Ayre.  The MicroRendu is shown for Sonore.  If I insert a MicroRendu between the Mini and the Codex is that likely to fix the problem?  I assume I could select the MicroRendu and Roon would find it.
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The Ayre Codex is not a Roon Endpoint.  If it is connected to the Roon Core directly by USB cable it will operate, but otherwise you need something like the microrendu as an endpoint that Roon will recognize on the network.  You would connect the Codex to it and and choose the MicroRendu as the zone in Roon.  I did the same operation with a Logitech Touch as the endpoint and connected the Codex to the the Logitech via USB. I now use a QX5 as a direct Roon Endpoint using an ethernet connection. 
Roon core is running 24/7 on a Mini connected by USB cable to the Codex.  It played a couple of files then stopped, and I have been unable to select it as a zone.  Since moving stuff around, Roon bridge connects to my QX-5 and is the only endpoint on our network recognized by Roon.
Roon bridge running on an iMac successfully sent files via USB to the Ayre DX-5 DSD, so I assumed Roon core would send files to the Codex via USB.  But I think I need a streamer, and it seems a microRendu will fill that need nicely.  CIA is an easy drive from Montecito (AKA Santa Barbara), so I may pick up a power supply at the factory.