Core unable to find audio player after router restart

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

QNAP TS-251, upgraded to 8gb RAM
QNAP firmware version 4.5.2.1566
Roon Core version 1.8 (build 576) / QPGK 2019-07-15
Database is currently on a spinning disk

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

Eero Router + Netgear GS105 switch
NAS and endpoint on ethernet, both connected to the switch

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

Raspberry Pi 3 Model B Plus Rev 1.3
with Pi2Designs AES
running RoPieeeXL v3.075
to a Schiit Modi 3+ via coax

Description Of Issue

I’ve gotten in the habit of turning the router off at night. In the past couple weeks, after I power the router back on, the core is unable to find the Raspberry Pi until I restart the core. I can’t say with certainty when this started, beyond a few weeks, but it might have corresponded with the upgrade to v1.8 (which is great btw).

After I restart the core, it finds the Raspberry every time, and is able to send audio to it fin. However, nothing else seems to work, including rebooting the Pi, (unplugging/replugging cables).

Any suggestions would be greatly appreciated.

Apologies for the trouble, @Matthew_Trentacoste!

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