I woke up and couldnt connect to my home assistant through NabuCasa after years of simply working:
2026-03-11 00:34:17.087 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 00:35:01.089 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 00:35:41.092 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 00:36:12.094 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
I know that if I restart it will probably work, but I would like to know why this happened, because if I am away, I could not be able to fix this.
UPDATE:
after updating the container and rebooting, still the same error. I also cant connect to another house I have.
There is something very wrong with my internet. I cannot even connect to Home Assistant servers on other houses with this wifi, I need to switch to 5G
2026-03-11 08:34:43.043 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:35:24.045 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:36:00.047 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:36:43.049 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:37:14.051 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:37:53.054 ERROR (MainThread) [hass_nabucasa.remote] Timeout connecting to snitun server
2026-03-11 08:38:00.060 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:38:08.068 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:38:23.073 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:38:35.079 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:38:53.086 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:39:01.091 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:39:09.097 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:39:28.104 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:39:45.111 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
2026-03-11 08:39:57.117 ERROR (MainThread) [hass_nabucasa.remote] Connection problem to snitun server (Can't connect to SniTun server us-east-1-14.ui.nabu.casa:443 with: [Errno -3] Try again)
s6-rc: info: service legacy-services: stopping
Same problem: Nabu Casa remote access stops working, notifications / webhooks / widget actions / google home keep working fine. Happened twice this week (May 29 and 30). Only way to fix it was restarting HA core.
HA 2026.5.4 supervised. Both iOS and Android companion apps affected at the same time.
In docker logs I found an AssertionError: Handler task not started in snitun that crashes the tunnel reconnection. After that error, the tunnel almost never recovers on its own - or takes many hours to eventually recover on its own ...