Home Assistant released stable 2026.9 on September 2, 2026, bringing its Matter network map to owners who stayed off the August 26 beta. You can inspect the routes behind a troublesome accessory inside Home Assistant, without opening the separate Matter Server dashboard or joining a beta.
The map puts Matter-over-Thread and Matter-over-Wi-Fi devices in one view. It labels Thread border routers and Wi-Fi access points, distinguishes routers from battery-powered end devices, and draws the path back to Home Assistant. Link color identifies Thread or Wi-Fi, while line thickness and direction show the reported signal strength on each side of a connection. Recognizable host names and Wi-Fi network names replace hardware identifiers where Home Assistant can obtain them.
That makes the map most useful as a first diagnostic step. A Thread sensor that repeatedly drops offline can be checked for a weak route or an unexpected border router, while a Matter-over-Wi-Fi device can be traced through its access point. The graph reports the topology available to the Matter Server; it does not repair a weak mesh, merge separate Thread networks, or prove that the line that looks weakest caused an outage.
The feature also depends on current server support. Home Assistant's backend change requires Matter Server schema 13 or newer, and the interface shows an update prompt when the connected server is too old instead of presenting a broken graph. Owners using Home Assistant's Connect ZBT-2 as a Thread radio still need the OpenThread Border Router setup. The new page changes visibility, not the radio's role or the network requirements around it.
In stable 2026.9, open Settings > Connectivity > Matter and select Show map. Update Matter Server if the page asks for it, then use the graph to choose the next network check. As of September 14, the latest stable Core patch is 2026.9.2, released September 11.
Updated September 14, 2026, to reflect the stable release and current menu path. Originally published August 30.
- Editor
- JC Martinez
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