It has happened!! Just when I thought CA had given up all but bug fixes for the 851N they go and release firmware bringing Roon Ready support to bring it up to speed with their other current steamers. If you have an 851N you need to enable 'early updates' to get the firmware now. The 851N currently appears in Roon as uncertified but it works perfectly. That's the best incentive to stay at home I've had so far. Massive kudos to CA. The 851N has always been a great piece of kit, now it's fantastic.