I have recently purchased and installed a Raspberry Pi with a HiFiBerry Digi+ Pro hat installed. It is connected via ethernet to my local network. Roon Core runs on a Mac Mini, also connect via ethernet. The router is a Netgear Nighthawk D7000, less than a year old. Audio files are stored on a Synology NAS which is also connected via ethernet.
I am getting audio drop outs every 10-20 seconds which is incredibly annoying.
I am using Roon DSP to upsample from 44.1 to 176.4 and am also using convolution. The HifiBerry Digi+ Pro is connected to my Naim NAC-N 272 digital preamp via a coax cable (this supports up to 192kHz).
CPU usage on the Mac Mini is low (Roon takes about 10-14%) and there is plenty of hard disk space.
This is unlistenable right now.