0.20.3

0.20.3

Added

• Device Sentinel can now detect when you your Wi-Fi goes down. Before this release, a Wi-Fi outage resulted in many separate device failures: every Wi-Fi device in the house was reported one by one, each with no cause. Now a WiFi outage is reported correctly. You get one notification saying the network went down that includes the number of devices that were taken down with it, one line on the to-do list, and one sentence in the daily brief. When the network comes back, the devices that recovered are cleared quietly, and only a device that stays broken afterward is reported by name.
• How it works, in one paragraph. If you run a router integration (TP-Link, UniFi, Fritz, and similar), it creates a small "device tracker" entity for each device on your network, showing home while connected. Device Sentinel matches those trackers to the devices it watches, using their network hardware addresses. When three or more of them drop off the network within a 60-second period, it debounces one more minute to be sure it is not a blip, then declares the outage.
• A new sensor, Bridge: WiFi, showing whether the WiFi network is up or down. It only appears if you have a router integration and at least one match was made. Without one, this feature is absent and changes nothing.
• For automations: the existing device_sentinel_upstream_down and device_sentinel_upstream_restored events now also fire for Wi-Fi outages, with wifi in the kind field.

Known Limits

• Matching is automatic only where the hardware addresses line up. A few device types do not expose one; a screen to match those by hand comes in a later release.
• If Home Assistant restarts in the middle of an outage, the outage is not re-detected until the network moves again.