Since a couple of days I have unexplained supervisor crashes.
Example log supervisor :
2025-01-07 22:17:02.480 INFO (MainThread) [supervisor.auth] Home Assistant not running, checking cache
2025-01-07 22:17:06.480 ERROR (MainThread) [supervisor.homeassistant.api] Timeout on call http://172.30.32.1:8123/api/core/state.
2025-01-07 22:17:38.480 ERROR (MainThread) [supervisor.homeassistant.api] Timeout on call http://172.30.32.1:8123/api/core/state.
2025-01-07 22:17:40.829 INFO (MainThread) [supervisor.auth] Auth request from 'core_mosquitto' for 'mqtt_user'
2025-01-07 22:17:51.480 ERROR (MainThread) [supervisor.homeassistant.api] Timeout on call http://172.30.32.1:8123/api/core/state.
2025-01-07 22:17:51.481 ERROR (MainThread) [supervisor.misc.tasks] Watchdog missed 2 Home Assistant Core API responses in a row. Restarting Home Assistant Core!
2025-01-07 22:17:51.485 INFO (SyncWorker_2) [supervisor.docker.manager] Restarting homeassistant
as the only other thing mentioned around the same time is mqtt, i checked the mqtt musquitto broker logs: At the same times I notice this:
2025-01-07 22:15:54: Bad socket read/write on client automatic: Unknown error.
2025-01-07 22:16:31: New connection from 192.168.2.210:36265 on port 1883.
time="2025-01-07T22:16:36+01:00" level=error msg="POST error: Post \"http://127.0.0.1:80/authentication\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
time="2025-01-07T22:16:36+01:00" level=error msg="Post \"http://127.0.0.1:80/authentication\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
2025-01-07 22:16:31: Bad socket read/write on client automatic: Unknown error.
2025-01-07 22:16:46: New connection from 172.30.32.2:53010 on port 1883.
2025-01-07 22:16:46: Client <unknown> closed its connection.
2025-01-07 22:17:40: New connection from 192.168.2.210:34585 on port 1883.
time="2025-01-07T22:17:45+01:00" level=error msg="POST error: Post \"http://127.0.0.1:80/authentication\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
time="2025-01-07T22:17:45+01:00" level=error msg="Post \"http://127.0.0.1:80/authentication\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
2025-01-07 22:17:40: Bad socket read/write on client automatic: Unknown error.
2025-01-07 22:18:36: Client 4oA9rIRkFM9ymYMI8XpiQd closed its connection.
The connection coms from 192.168.2.210 which I used by Adguard. Adguard is not using MQTT, so unclear why. Maybe a client (unknown so far) used DNS to find the MQTT server.
Could it be that Adguard does some “poor” auth rewrite? mangles the content of the packets and stalls mosquitto to eventually halt the supervisor?
Running 2025.1.1, supervisor 2024.12.3, OS, 14.1.
No obvious changes that could explain any of this. (at least by me 
Please, any assistance on how to troubleshoot?