Interrupts and Stops between tracks on MacOS

[TH3301]

Hi,

Here is my setup: minimserver on Mini-MAC with MacOS Catalina. Naim Unity Atom connected via Ethernet (cable) to the network, Naim App on iPhone.

Here is the strange behaviour:
If the Mini-MAC is connected via Ethernet cable only, all is fine.
If I switch on WiFi in addition, I encounter regular (3-4 per track) drop-outs of the music and stops between tracks (i.e. if I play an album, it might stop after the 3rd or 5th track).

In the latter case, the Mini-MAC, and hence the MinimServer, has two different IP addresses via which it is reachable. Normally, the MacOS has a priority list in which the Ethernet is always no. 1. So, I thought the IP address of the WiFi has no influence. Still, I guess that somehow these 2 IP addresses might be the reason for the strange behaviour.

I would like to have WiFi on because I need the airdrop feature of the Mac. However, I prefer using the cabled Ethernet for the streaming.

Has anybody got an idea of how to solve this?