I got a bit curious about whether your assumptions were correct so i had to perform a couple of tests myself.
My Aries G1 buffers the complete song and plays it to the end when internet access is revoked, regardless of the connection type. When the next track in queue is about to start the display notifies that there is somehing wrong with connectivity.
Tested using Tidal and Qobuz, controlled by Lightning DS app on iOS.
Proud new Aries G1 owner. Just set it up. Setup went well with the app, well designed experience, including the WiFi network switching which can be tricky. Already sounds very nice. For now using wired Ethernet, my wireless network could not handle the qobuz high resolution stream well, I have to upgrade the standard router from the telecom provider. Also for now just plugged in a music library on a 128GB USB key in the back. I think I’ll explore a NAS because some of the USB files sound a bit harsh. Output goes to my Benchmark DAC3 through coax for now, will play with USB down the road to see if it makes a difference. By the way the physical quality of the G1 is impressive, built like a tank. I know it’s all about the sound, but a high quality case gives me the comfort I got a high end device for my dollars. Greetings to my fellow G1 owners.
It is actually two stories. The DNS only affect when you play TIDAL (for Internet connection) while the reason device drop from network is inside home network. The device will still drop even you have 10G Internet connection if the in LAN package policy is not probably handled.