What downstream gear is your 210 connected to? It is possible to use DSP volume control in Roon, but this method causes a loss in resolution (at the DAC) at anything less than full signal digital.
Im using an Audio Note DAC2.1x, Ive tried other streamers like the Bluesound and Aries and even PI Hats with no issue, the DSP volume works no problem with them. Sadly this will discount the streamer as I need the volume function in Roon as my amp, Audio Note Soro, is not remote controlled.
It doesnt have a digital volume control like Bluesound as it has no DAC module, but you can use DSP but as Joel says at some loss of resolution that can’t be got around.