Integration failing to connect: ERROR: Connection to Cync server reset, restarting in 15 seconds #144
Description
Hello! I just installed your integration to add my two Cync bulbs (WIFI) to HA. The authentication worked fine and I can see my devices, but I cannot control them :(
The first WARNING message indicates that the certificate cannot be validated and that the integration is disabling SSL:
2025-06-19 04:03:19.512 WARNING (Thread-696 (_start_tcp_client)) [custom_components.cync_lights.cync_hub] Connection problem, disabling SSL verification
Traceback (most recent call last):
File "/config/custom_components/cync_lights/cync_hub.py", line 451, in _connect
self.reader, self.writer = await asyncio.open_connection(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"cm.gelighting.com", 23779, ssl=context
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/local/lib/python3.13/asyncio/streams.py", line 48, in open_connection
transport, _ = await loop.create_connection(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lambda: protocol, host, port, **kwds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/asyncio/base_events.py", line 1187, in create_connection
transport, protocol = await self._create_connection_transport(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...<2 lines>...
ssl_shutdown_timeout=ssl_shutdown_timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/asyncio/base_events.py", line 1220, in _create_connection_transport
await waiter
File "/usr/local/lib/python3.13/asyncio/sslproto.py", line 581, in _on_handshake_complete
raise handshake_exc
File "/usr/local/lib/python3.13/asyncio/sslproto.py", line 563, in _do_handshake
self._sslobj.do_handshake()
~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/ssl.py", line 951, in do_handshake
self._sslobj.do_handshake()
~~~~~~~~~~~~~~~~~~~~~~~~~^^
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: Hostname mismatch, certificate is not valid for 'cm.gelighting.com'. (_ssl.c:1028)
And the message is actually true, they seem to be using a cert that expired in 2021 & for a different hostname...
I do have a connection to the URL over the port though:
telnet cm.gelighting.com 23779
Trying 35.196.85.236...
Connected to cm-iot-ge.xlink.cloud.
Escape character is '^]'.
Immediately after this message I get a TCP error, indicating that the connection to GE was reset and it just goes in a loop trying to connect and repeating the WARNING and ERROR posted above
2025-06-19 04:03:04.317 ERROR (Thread-696 (_start_tcp_client)) [custom_components.cync_lights.cync_hub] Detected code that calls async_write_ha_state from a thread other than the event loop, which may cause Home Assistant to crash or data to corrupt. For more information, see https://developers.home-assistant.io/docs/asyncio_thread_safety/#async_write_ha_state. Please report this issue
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 239, in _report_usage
integration_frame = get_integration_frame(
exclude_integrations=exclude_integrations
)
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 130, in get_integration_frame
raise MissingIntegrationFrame
homeassistant.helpers.frame.MissingIntegrationFrame
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/config/custom_components/cync_lights/cync_hub.py", line 501, in _connect
result = task.result()
File "/config/custom_components/cync_lights/cync_hub.py", line 824, in _update_state
dev.publish_update()
~~~~~~~~~~~~~~~~~~^^
File "/config/custom_components/cync_lights/cync_hub.py", line 1452, in publish_update
self._update_callback()
~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1018, in async_write_ha_state
report_non_thread_safe_operation("async_write_ha_state")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 402, in report_non_thread_safe_operation
report_usage(
~~~~~~~~~~~~^
f"calls {what} from a thread other than the event loop, "
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...<6 lines>...
custom_integration_behavior=ReportBehavior.ERROR,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 202, in report_usage
future.result()
~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/concurrent/futures/_base.py", line 456, in result
return self.__get_result()
~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.13/concurrent/futures/_base.py", line 401, in __get_result
raise self._exception
File "/usr/src/homeassistant/homeassistant/util/async_.py", line 68, in run_callback
future.set_result(callback(*args))
~~~~~~~~^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 243, in _report_usage
_report_usage_no_integration(what, core_behavior, breaks_in_ha_version, err)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/helpers/frame.py", line 373, in _report_usage_no_integration
raise RuntimeError(msg) from err
RuntimeError: Detected code that calls async_write_ha_state from a thread other than the event loop, which may cause Home Assistant to crash or data to corrupt. For more information, see https://developers.home-assistant.io/docs/asyncio_thread_safety/#async_write_ha_state. Please report this issue
2025-06-19 04:03:04.320 ERROR (Thread-696 (_start_tcp_client)) [custom_components.cync_lights.cync_hub] Connection to Cync server reset, restarting in 15 seconds
2025-06-19 04:03:07.718 ERROR (MainThread) [homeassistant.components.alexa_devices] Unexpected error fetching [email protected] data
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 382, in _async_refresh
self.data = await self._async_update_data()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/alexa_devices/coordinator.py", line 54, in _async_update_data
return await self.api.get_devices_data()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/aioamazondevices/api.py", line 700, in get_devices_data
entity_ids_list = await self._get_devices_ids()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/aioamazondevices/api.py", line 541, in _get_devices_ids
self._devices[serial_number] |= {NODE_IDENTIFIER: identifier}
~~~~~~~~~~~~~^^^^^^^^^^^^^^^
KeyError:
My system:
System Information
| version | core-2025.6.1 |
|---|---|
| installation_type | Home Assistant OS |
| dev | false |
| hassio | true |
| docker | true |
| user | root |
| virtualenv | false |
| python_version | 3.13.3 |
| os_name | Linux |
| os_version | 6.12.25-haos-raspi |
| arch | aarch64 |
| timezone | America/Phoenix |
| config_dir | /config |
Home Assistant Community Store
| GitHub API | ok |
|---|---|
| GitHub Content | ok |
| GitHub Web | ok |
| HACS Data | ok |
| GitHub API Calls Remaining | 4982 |
| Installed Version | 2.0.5 |
| Stage | running |
| Available Repositories | 2052 |
| Downloaded Repositories | 218 |
Home Assistant Cloud
| logged_in | true |
|---|---|
| subscription_expiration | June 6, 2026 at 5:00 PM |
| relayer_connected | true |
| relayer_region | |
| remote_enabled | true |
| remote_connected | true |
| alexa_enabled | true |
| google_enabled | true |
| cloud_ice_servers_enabled | true |
| remote_server | |
| certificate_status | ready |
| instance_id | |
| can_reach_cert_server | ok |
| can_reach_cloud_auth | ok |
| can_reach_cloud | ok |
Home Assistant Supervisor
| host_os | Home Assistant OS 16.0.rc1 |
|---|---|
| update_channel | beta |
| supervisor_version | supervisor-2025.06.0 |
| agent_version | 1.7.2 |
| docker_version | 28.0.4 |
| disk_total | 116.6 GB |
| disk_used | 24.4 GB |
| healthy | true |
| supported | true |
| host_connectivity | true |
| supervisor_connectivity | true |
| ntp_synchronized | true |
| virtualization | |
| board | rpi5-64 |
| supervisor_api | ok |
| version_api | ok |
| i |
Dashboards
| dashboards | 11 |
|---|---|
| resources | 127 |
| views | 105 |
| mode | storage |