Daikin Altherma integration failing on boot

Hi All, I’ve had the Daikin Altherma running successfully for at least 9 months, but now I’m getting an error on boot when the integration is loaded. I haven’t changed anything in the Daikin Altherm integration. I have added extensive Zigbee integration, though this should interfere.

The system is operating perfectly through the ONECTA app, so the error must be in the HA integration.

I’ve tried reloading the integration and even downloading it again.

The log is below. Any pointers?

This error originated from a custom integration.

Logger: homeassistant.config_entries
Source: custom_components/daikin_altherma/__init__.py:33
Integration: Daikin Altherma HVAC (documentation, issues)
First occurred: 10:33:55 (1 occurrences)
Last logged: 10:33:55

Error setting up entry Daikin HVAC controller (214700290) for daikin_altherma
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 980, in _wrap_create_connection
    return await self._loop.create_connection(*args, **kwargs)  # type: ignore[return-value]  # noqa
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/asyncio/base_events.py", line 1085, in create_connection
    raise exceptions[0]
  File "/usr/local/lib/python3.11/asyncio/base_events.py", line 1069, in create_connection
    sock = await self._connect_sock(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/asyncio/base_events.py", line 973, in _connect_sock
    await self.sock_connect(sock, address)
  File "/usr/local/lib/python3.11/asyncio/selector_events.py", line 634, in sock_connect
    return await fut
           ^^^^^^^^^
  File "/usr/local/lib/python3.11/asyncio/selector_events.py", line 674, in _sock_connect_cb
    raise OSError(err, f'Connect call failed {address}')
OSError: [Errno 113] Connect call failed ('192.168.86.241', 80)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 387, in async_setup
    result = await component.async_setup_entry(hass, self)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/daikin_altherma/__init__.py", line 68, in async_setup_entry
    hass.data[DOMAIN][entry.entry_id] = api = await setup_api_instance(
                                              ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/daikin_altherma/__init__.py", line 33, in setup_api_instance
    await device.discover_units()
  File "/usr/local/lib/python3.11/site-packages/pyaltherma/controllers.py", line 458, in discover_units
    resp_obj = await self._connection.request(dest)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pyaltherma/comm.py", line 39, in request
    result = await self._request(dest, payload, wait_for_response, assert_response_fn)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/pyaltherma/comm.py", line 45, in _request
    await self.connect()
  File "/usr/local/lib/python3.11/site-packages/pyaltherma/comm.py", line 30, in connect
    self._client = await self._session.ws_connect(self.ws_address)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/client.py", line 779, in _ws_connect
    resp = await self.request(
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/client.py", line 536, in _request
    conn = await self._connector.connect(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 540, in connect
    proto = await self._create_connection(req, traces, timeout)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 901, in _create_connection
    _, proto = await self._create_direct_connection(req, traces, timeout)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 1206, in _create_direct_connection
    raise last_exc
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 1175, in _create_direct_connection
    transp, proto = await self._wrap_create_connection(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/aiohttp/connector.py", line 988, in _wrap_create_connection
    raise client_error(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host 192.168.86.241:80 ssl:default [Connect call failed ('192.168.86.241', 80)]