Integration failing to setup

[AngeloFiat]

The Cync light integration will no longer load in my HA environment. Reloading has no effect. I turned on debug logging and attached snippets below. The logs say to report it to the developer, so here I am. Happy to try any suggestions to troubleshoot if you think it is specific to my implementation. Using Cunc Light version 1.0.1

2026-03-21 15:44:16.044 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to import_module with args ('custom_components.cync_lights.light',) inside the event loop by custom integration 'cync_lights' at custom_components/cync_lights/init.py, line 19: await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS) (offender: /usr/src/homeassistant/homeassistant/loader.py, line 1312: return importlib.import_module(f"{self.pkg_path}.{platform_name}")), please report it to the author of the 'cync_lights' custom integration
For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#import_module

2026-03-21 15:44:16.045 ERROR (MainThread) [homeassistant.config_entries] Error setting up entry cync_lights_redacted for cync_lights
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 769, in __async_setup_with_context
result = await component.async_setup_entry(hass, self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/cync_lights/init.py", line 19, in async_setup_entry
await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2683, in async_forward_entry_setups
await integration.async_get_platforms(platforms)
File "/usr/src/homeassistant/homeassistant/loader.py", line 1193, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1193, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1193, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
[Previous line repeated 1 more time]
File "/usr/src/homeassistant/homeassistant/loader.py", line 1181, in async_get_platforms
platforms.update(self._load_platforms(platform_names))
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1106, in _load_platforms
platform_name: self._load_platform(platform_name)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1280, in _load_platform
cache[full_name] = self._import_platform(platform_name)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1312, in _import_platform
return importlib.import_module(f"{self.pkg_path}.{platform_name}")
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/util/loop.py", line 201, in protected_loop_func
return func(*args, **kwargs)
File "/usr/local/lib/python3.14/importlib/init.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1398, in _gcd_import
File "", line 1371, in _find_and_load
File "", line 1342, in _find_and_load_unlocked
File "", line 938, in _load_unlocked
File "", line 759, in exec_module
File "", line 491, in _call_with_frames_removed
File "/config/custom_components/cync_lights/light.py", line 4, in
from homeassistant.components.light import (ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_RGB_COLOR, ColorMode, LightEntity)
ImportError: cannot import name 'ATTR_COLOR_TEMP' from 'homeassistant.components.light' (/usr/src/homeassistant/homeassistant/components/light/init.py)

[mshaub]

I'm having the same issue. FWIW Claude.ai says the integration "is using an outdated HA API method (async_abort) that was removed in a recent HA version"

[puskyer]

I am having the same issue, have uninstalled and reinstalled
Does all the authentication no problem.

And get the same error

This error originated from a custom integration.

Logger: custom_components.cync_lights.cync_hub
Source: custom_components/cync_lights/cync_hub.py:535
Integration: Cync Lights (documentation)
First occurred: 6:22:37 AM (132 occurrences)
Last logged: 6:23:22 AM

Skipping corrupted packet, 1019 is not 995

This error originated from a custom integration.

Logger: custom_components.cync_lights.cync_hub
Source: custom_components/cync_lights/cync_hub.py:451
Integration: Cync Lights (documentation)
First occurred: 6:22:35 AM (1 occurrence)
Last logged: 6:22:35 AM

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/python3.14/asyncio/streams.py", line 48, in open_connection
transport, _ = await loop.create_connection(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lambda: protocol, host, port, **kwds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/asyncio/base_events.py", line 1198, in create_connection
transport, protocol = await self._create_connection_transport(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...<2 lines>...
ssl_shutdown_timeout=ssl_shutdown_timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/asyncio/base_events.py", line 1231, in _create_connection_transport
await waiter
File "/usr/local/lib/python3.14/asyncio/sslproto.py", line 581, in _on_handshake_complete
raise handshake_exc
File "/usr/local/lib/python3.14/asyncio/sslproto.py", line 563, in _do_handshake
self._sslobj.do_handshake()
~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/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:1081)

And then
Logger: homeassistant.config_entries
Source: config_entries.py:787
First occurred: 6:22:35 AM (1 occurrence)
Last logged: 6:22:35 AM

Error setting up entry cync_lights_puskyer@gmail.com for cync_lights
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 787, in __async_setup_with_context
result = await component.async_setup_entry(hass, self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/cync_lights/init.py", line 19, in async_setup_entry
await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2727, in async_forward_entry_setups
await integration.async_get_platforms(platforms)
File "/usr/src/homeassistant/homeassistant/loader.py", line 1194, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1194, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1194, in async_get_platforms
import_future.result()
~~~~~~~~~~~~~~~~~~~~^^
[Previous line repeated 1 more time]
File "/usr/src/homeassistant/homeassistant/loader.py", line 1182, in async_get_platforms
platforms.update(self._load_platforms(platform_names))
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1107, in _load_platforms
platform_name: self._load_platform(platform_name)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1281, in _load_platform
cache[full_name] = self._import_platform(platform_name)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/loader.py", line 1313, in _import_platform
return importlib.import_module(f"{self.pkg_path}.{platform_name}")
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/util/loop.py", line 201, in protected_loop_func
return func(*args, **kwargs)
File "/usr/local/lib/python3.14/importlib/init.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1398, in _gcd_import
File "", line 1371, in _find_and_load
File "", line 1342, in _find_and_load_unlocked
File "", line 938, in _load_unlocked
File "", line 759, in exec_module
File "", line 491, in _call_with_frames_removed
File "/config/custom_components/cync_lights/light.py", line 4, in
from homeassistant.components.light import (ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_RGB_COLOR, ColorMode, LightEntity)
ImportError: cannot import name 'ATTR_COLOR_TEMP' from 'homeassistant.components.light' (/usr/src/homeassistant/homeassistant/components/light/init.py)

Then final warning from log

Logger: homeassistant.util.loop
Source: util/loop.py:137
First occurred: 6:22:35 AM (1 occurrence)
Last logged: 6:22:35 AM

Detected blocking call to import_module with args ('custom_components.cync_lights.light',) inside the event loop by custom integration 'cync_lights' at custom_components/cync_lights/init.py, line 19: await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS) (offender: /usr/src/homeassistant/homeassistant/loader.py, line 1313: return importlib.import_module(f"{self.pkg_path}.{platform_name}")), please report it to the author of the 'cync_lights' custom integration For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#import_module Traceback (most recent call last): File "", line 198, in _run_module_as_main File "", line 88, in _run_code File "/usr/src/homeassistant/homeassistant/main.py", line 229, in sys.exit(main()) File "/usr/src/homeassistant/homeassistant/main.py", line 215, in main exit_code = runner.run(runtime_conf) File "/usr/src/homeassistant/homeassistant/runner.py", line 289, in run return loop.run_until_complete(setup_and_run_hass(runtime_config)) File "/usr/local/lib/python3.14/asyncio/base_events.py", line 706, in run_until_complete self.run_forever() File "/usr/local/lib/python3.14/asyncio/base_events.py", line 677, in run_forever self._run_once() File "/usr/local/lib/python3.14/asyncio/base_events.py", line 2046, in _run_once handle._run() File "/usr/local/lib/python3.14/asyncio/events.py", line 94, in _run self._context.run(self._callback, *self._args) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 955, in async_setup_locked await self.async_setup(hass, integration=integration) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 694, in async_setup await self.__async_setup_with_context(hass, integration) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 787, in __async_setup_with_context result = await component.async_setup_entry(hass, self) File "/config/custom_components/cync_lights/init.py", line 19, in async_setup_entry await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)

Hope this helps

More troubleshooting
It seems that the SSL certificate to cm.gelighting.com has expired

The other issue I am not sure if this is normal it the the certificate

Further the domain cm.gelighting.com pointing to *.xlink.cn.

dig cm.gelighting.com
; <<>> DiG 9.18.39-0ubuntu0.24.04.5-Ubuntu <<>> cm.gelighting.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59060
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;cm.gelighting.com. IN A
;; ANSWER SECTION:
cm.gelighting.com. 43 IN CNAME cm-iot-ge.xlink.cloud.
cm-iot-ge.xlink.cloud. 41 IN 35.196.85.236
;; AUTHORITY SECTION:
xlink.cloud. 43 IN SOA dns23.hichina.com. hostmaster.hichina.com. 2026011209 3600 1200 86400 600
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Sun May 24 11:03:54 UTC 2026
;; MSG SIZE rcvd: 158

More

traceroute --resolve-hostnames cm.gelighting.com -p 23779
traceroute to cm-iot-ge.xlink.cloud (35.196.85.236), 64 hops max
1 192.168.xxx.1 (192.168.xxx.1) 0.487ms 0.261ms 0.223ms
2 192.168.xxx.1 (192.168.xxx.1) 1.368ms 0.891ms 0.644ms
3 * * *
4 * * *
5 * * *
6 * * *
7 72.14.210.173 (72.14.210.173) 31.927ms 25.107ms 23.074ms
8 35.196.85.236 (236.85.196.35.bc.googleusercontent.com) 59.321ms 54.977ms 55.136ms

Hope this helps

[kevin8705]

So, I've been dealing with this for months but didn't want to go fix it so I was running older HA code. I got around to it tonight...it's a 30 second fix...

1. Open /homeassistant/custom_components/cync_lights
2. Replace all instances of "ATTR_COLOR_TEMP" with "ATTR_COLOR_TEMP_KELVIN" (I had 3 instances to replace)
3. Save and reload the integration and everything should work, at least it did for me.