I'm not about to tempt the Harmony gods by deleting and trying to re-do it from scratch, but from my Devices settings my device seems to be "Oppo BDP-103". (Just playing a bit, add the device as manufacturer "Oppo", device model number as "BDP-103".) My recollection is that the only way for it to recognize my remote was to train it (it didn't work initially), probably by using the Add or Fix a Command feature for the Device, but I have it as remote code 2, so that's probably why. This was all done via the MyHarmony (Mac) application.
After I did enter Oppo and BDP-103 it day say "Oppo Home Theater" in the subsequent dialog, by the way, but that was I think the only mention of it during setup.
This was not with your version of the Harmony remote by the way.