Roon 1.8 losing connection to Ropieee / USB DAC

Core Machine (Operating system/System info/Roon build number)

Nuc7i7 Roon 1.8 build 756

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

Ethernet

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

Ropieee 3.075 Raspberry Pi 3 Model B Plus Rev 1.3
USB connection to SMSL M500 DAC.

Description Of Issue

After upgrade to 1.8 everything was working fine, then I lost connection to my SMSL DAC. When I verified that I could connect to the RPi via ethernet, I noted that there was an upgrade availalble to Ropieee. I upgraded Ropieee to the latest version, but this did not resolve the issue. I then rebooted the Roon server software, and the SMSL DAC re-appeared. All good until today, when it disappeared again. I rebooted Roon server software again, and it re-appeared. Connection had been stable under 1.7. Any suggestions?
Thanks
Mark

5 posts were merged into an existing topic: 1.8 Audio devices in Settings but not in Zone picker [Ticket In]