Hi @Marten_Collins — Thank you for getting in touch and no apologies necessary 
Moving forward, to help aide in my evaluation of this behavior you are experiencing with the NAIM Atom may I very kindly ask you to provide the following information:
-
Please expand on the description of your setup using this link. I would like to have a better sense as to what your setup “looks like”.
-
Please provide insight on how you have been trying to mount the ATOM in Roon? The device should be able to be added as an smb share.
-
Can the ATOM be accessed via the OS on the iMac outside of the application without issue?
-Eric