I recently purchased a Denon x4400H AVR, which I then returned for a Martantz SR7013. Both had some issues with JRiver. The Marantz has bigger issues. It seems the problems are due to the HEOS app that comes with the Denon and Marantz AVRs (they're the same company). It seems HEOS just does not "play nice" with JRiver. For years, I was happy streaming music to my old Onkyo with no real problems (other than I could play gapless). Trying to use JRiver with the Marantz via DLNA is a nightmare. In the meantime, I've just been using the HEOS app, which works fine but has a terrible user interface -- you have work through multiple levels to get to anything. I even tried using Roon on a trial version -- it was pretty cool and I liked how it combined Tidal and my local files -- but it was very slow and buggy with the Marantz, too. At this point, it looks like my only option is to replace the Marantz or build a little HTPC to serve hi res music directly to the AVR. Or I could just live with HEOS, though I hate to give up JRiver and JRemote.
Also, now I am wondering about the best way to get music in multiple rooms.
Has anybody else been having compatibility issues using JRiver with a newer Denon or Marantz?