Have had this issue logging in using Chrome or other PC browsers. Appeared once before and now again after upgrade Hassio to 0.94.3. Browser authenticates, then sits with blue banner for 10 where message “Unable to connect to Home Assistant.” is subsequently displayed.
Log shows only:
“2019-06-16 07:17:13 WARNING (MainThread) [homeassistant.components.websocket_api.http.connection.1797027760] Disconnected: Did not receive auth message within 10 seconds”
Login to HA works fine from iOS app. I suspect it has something to do with “tokens” in "auth " file