Rather randomly my hadashboard stopped working. Checking the HA error log I can see this every 5 seconds;
Disconnected: Did not receive auth message within 10 seconds
It also tied in with my appdaemon showing constant connection and disconnection every second;
2018-11-02 16:39:21.438735 INFO AppDaemon: HASS: Connected to Home Assistant 0.81.2
2018-11-02 16:39:21.441181 WARNING AppDaemon: HASS: Disconnected from Home Assistant, retrying in 5 seconds
2018-11-02 16:39:26.474278 INFO AppDaemon: HASS: Connected to Home Assistant 0.81.2
This just started happening randomly, not after an upgrade.
Ok a few points to rule out issue. remove the ha_key section its no longer needed as you have a token.
One further point, you have appdaemon configured to use your full dns which means every time appdaemon contacts ha it goes out of your network and back in again. If your internet stops working so will appdaemon. I suggest you look at a reverse proxy which will allow you to expose and internal endpoint on as well as an external.
Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/http.py:254
Integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 25 de janeiro de 2022 20:08:08 (1496 occurrences)
Last logged: 21:53:28
[1715720808] Disconnected: Did not receive auth message within 10 seconds
[1725545944] Disconnected: Did not receive auth message within 10 seconds
[1683588864] Disconnected: Did not receive auth message within 10 seconds
[1675903712] Disconnected: Did not receive auth message within 10 seconds
[1661942344] Disconnected: Did not receive auth message within 10 seconds