Hi Roland,
Here are my settings:
-
My home network:
IP: 192.168.168.x (router is 192.168.168.1)
MASK: 255.255.255.0
All devices are using DHCP, including my Roon ROCK Ethernet_1, connected to router. The same should be for your Roon ROCK WiFi.
So, Roon ROCK Ethernet_1 will be something like 192.168.168.x. -
Roon ROCK Ethernet_2 - Manual IP config. This one is connected to DAC (direct cable). The same should be for your Roon ROCK Ethernet.
IP: 172.168.168.101
MASK: 255.255.255.0
DNS: 0.0.0.0
GATEWAY: 0.0.0.0 -
My DAC Ethernet - Manual IP config. This one is connected to Roon ROCK Ethernet_2 (direct cable). The same should be for your Pi 4 Ethernet.
IP: 172.168.168.102
MASK: 255.255.255.0
DNS: 0.0.0.0
GATEWAY: 0.0.0.0
NOTE: This is meaning that your Pi 4 is not connected to your network, so you will not be able to access your Pi 4 using network computers etc. But Roon ROCK should be able to access Pi 4.