I've just successfully installed Channels to a Synology DS423+. I've used a docker container to run the server. I can access it via its IP address of 192.168.1.124:8089 on the local network from both a windows latop and an iPhone.
However when I go to connect an AppleTV via WiFi it cannot connect to the server via the 192.168.1.124. I have verified the AppleTV is on the same WiFi and local subnet.
The only strange thing I noticed was in the server side settings i have selected "Network Discovery" but below it shows this string of text:
Advertising dvr-be410ef0469c.local. via 1 network: [172.20.0.2]
Why is it showing a 172.20.0.2 address? Any help would be appreciated.