Hi @kevort, I actually found a fix. The issue stems from limited IPv6 support in Synology DSM. The solution is twofold:
- Fix Routing: Run a script on your Synology NAS to manually add the missing IPv6 routes.
- Docker Config: Ensure IPv6 is enabled for your Docker network.
Important Prerequisite: Your OTBR (OpenThread Border Router) must be on the same network as your Home Assistant instance.
You can find the full details and script references here:
- Matter Server Docker Container on Synology NAS / Home Assistant Core - #16 by psynikal
- python-matter-server/docs/os_requirements.md at 5a040d1889e1b9ec0eb9c12be546a4ee455ea77b · matter-js/python-matter-server · GitHub
- A working Matter docker container in a macvlan network, am I in for trouble later? · Issue #983 · matter-js/python-matter-server · GitHub