People usually don’t forget installing HQ Player, which is a software upsampling, filtering and DSP program separate from Roon (you wouldn’t forget paying the licence fee !). I suspect you may not have HQ Player installed and have added your BDP-2 IP address into the HQ Player field of the Networked section of the Audio tab, thinking (rather naturally) that is how you might connect to Networked devices like your BDP-2.
If that is correct and you don’t have HQ Player then the first thing to do is remove that Zone, it’s just confusing Roon.
What should be happening is a big graphic of your BDP-2 shows up in the Networked section as an available Roon Ready Zone and you can simply select it and play music. One reason that might not be occurring is if your BDP-2 is not running the Roon Ready firmware.
I’d suggest updating the firmware on the BDP-2, restarting everything and then see if a Networked Roon Ready Zone appears for your Bryston.
Edit: You might find the Roon Knowledge Base and User Guide helpful. It can assist with a lot of questions, but please don’t hesitate to post on the Forum also; that’s what we’re here for !