I think that the original model was one of those that advertised Roon Ready before actually receiving certification of such. Sometime ago, Roon stopped allowing devices which actually did not receive Roon Ready certification from being enabled, or, re-enabled.
I think I found the text from an email of that announcement in 2020…
What is changing?
Starting September 21st, Roon Ready devices that are uncertified will no longer have the ability to be enabled on the Audio Settings screen. When this change is made, uncertified devices will be discoverable, but cannot be Enabled for use with Roon.Why is it changing?
The Roon Ready certification allows people to trust that they’re getting the best quality possible, but when products are prematurely released before their certification is complete, that trust is undermined. Not only can it create problematic situations for all parties involved, it hurts the reputation of the entire Roon Ready program.How will this impact me?
If your device is Enabled in Roon’s settings, it will stay Enabled. But if you Disable the device, you will not be able to Enable it again after September 21st.
If you purchase a device that is not certified as Roon Ready, you will not be able to Enable it for use after September 21st.What do you need to do?
Avoid Disabling the device after September 21st
Contact your device’s manufacturer to make sure that they are working to complete their Roon Ready certification.
There is also the page in the forums…