Quick roon question

Yes, it should figure out which is which they will have different IP addresses,  you might name them system 1 and system 2 or something more intuitive like family room and kitchen. 

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There may be differences in SQ running bdp2 as roon endpoint vs. playing your music straight off the hard drive that’s connected to the bdp2 using Bryston’s software or web interface. That’s why I brought up the set up I did with the Auralic in my earlier post. So if your system is resolving and you sit down for a critical listening session you may discover things you don’t like about the sound of roon. YMMV but that is my experience. However, as a database and a UI, I’ve not seen anything better than Roon yet.