# TaHoma Binding does not work in OH 3.4.4 - Could not register events **URL:** \ **Category:** Bindings\ **Tags:** somfytahoma\ **Created:** [June 11, 2023, 6:53pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208 "2023-06-11T18:53:54Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![YinYang](https://community.openhab.org/letter_avatar_proxy/v4/letter/y/65b543/32.png) [@YinYang](https://community.openhab.org/u/YinYang)\ **Post date:** [June 11, 2023, 6:53pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/1 "2023-06-11T18:53:54Z")
Since some days my Tahoma binding has stopped working. As I have seen on GitHub I am not the only one: [[somfytahoma] unable to register events after a week · Issue #14530 · openhab/openhab-addons · GitHub](https://github.com/openhab/openhab-addons/issues/14530) Since there is no reaction so far I would like to check: - Who has the same error when using Tahoma binding? (“Could not register events”) - What can be done to analyze and solve the topic? Thanks in advance! ---
**Author:** ![Miercol](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/c67d28/32.png) [@Miercol](https://community.openhab.org/u/Miercol)\ **Post date:** [June 11, 2023, 7:32pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/2 "2023-06-11T19:32:06Z")
Same happens to me. Tahoma Switch conecta throught wifi. Sounds strange, but the problem that I observe is that Tahoma Switch looses IP address from DHCP and can’t recoger from that state. ---
**Author:** ![YinYang](https://community.openhab.org/letter_avatar_proxy/v4/letter/y/65b543/32.png) [@YinYang](https://community.openhab.org/u/YinYang)\ **Post date:** [June 13, 2023, 8:01pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/3 "2023-06-13T20:01:00Z")
Do you have an idea how to solve it? I have restarted openHab and issue still occurs. In Devel-Mode the (local) IP is found an even a token is generated, but still error arises “Could not register events”) ---
**Author:** ![christoph\_kowatschik](https://community.openhab.org/letter_avatar_proxy/v4/letter/c/d78d45/32.png) [@christoph\_kowatschik](https://community.openhab.org/u/christoph_kowatschik)\ **Post date:** [June 23, 2023, 3:14pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/4 "2023-06-23T15:14:31Z")
Hi, unfortunately seems I encounter the same issue … shortly I could connect via cloud disabling dev mode. But then after a short while I get the same error message. Any hint would be appreciated 🙂 ---
**Author:** ![Miercol](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/c67d28/32.png) [@Miercol](https://community.openhab.org/u/Miercol)\ **Post date:** [June 23, 2023, 3:50pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/5 "2023-06-23T15:50:42Z")
Connected througout ethernet cable adapter and connection is stable last 2 weeks. I suspect that Tahoma Switch looses IP from DHCP negotiation when WiFi connection is selected. Error from Somfy bridge in my opinion. ---
**Author:** ![christoph\_kowatschik](https://community.openhab.org/letter_avatar_proxy/v4/letter/c/d78d45/32.png) [@christoph\_kowatschik](https://community.openhab.org/u/christoph_kowatschik)\ **Post date:** [June 23, 2023, 6:19pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/6 "2023-06-23T18:19:24Z")
Hi Miercol, not sure I understand. I have the Tahoma Gateway and the Raspi with OH on my LAN connected… which Wifi connection selection you are referring to? ---
**Author:** ![Miercol](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/c67d28/32.png) [@Miercol](https://community.openhab.org/u/Miercol)\ **Post date:** [June 23, 2023, 8:43pm UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/7 "2023-06-23T20:43:36Z")
Tahoma Switch is a WiFi bridge by default. You connect the Tahoma Bridge to your router/DHCP server with a WiFi connection. There is an option to connect Tahoma with an ethernet adapter. Default Somfy configuration outside OpenHAB world. I even have problema with Somfy Tahoma Switch not connected to OpenHAB. With ethernet adapter problems may would had dessapeared. ---
**Author:** ![YinYang](https://community.openhab.org/letter_avatar_proxy/v4/letter/y/65b543/32.png) [@YinYang](https://community.openhab.org/u/YinYang)\ **Post date:** [June 30, 2023, 5:55am UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/8 "2023-06-30T05:55:14Z")
Funny. I have deactivated the somfytahoma:bridge several days ago and re-activating it has not solved the topic. Repeating it today (always with cleared Gateway IP, PIN and local token) the bridge started working again. I can access all needed data. Whatever happened magically in last days I am happy that it works again. Unfortunately without knowing what has caused the trouble… ---
**Author:** ![stamate\_viorel](https://community.openhab.org/letter_avatar_proxy/v4/letter/s/41988e/32.png) [@stamate\_viorel](https://community.openhab.org/u/stamate_viorel)\ **Post date:** [January 24, 2025, 10:45am UTC](https://community.openhab.org/t/tahoma-binding-does-not-work-in-oh-3-4-4-could-not-register-events/147208/9 "2025-01-24T10:45:15Z")
the binding is not working at all i get this in the logs: ```auto ┌2025-01-24 11:35:31.120 [WARN] [ty.util.ssl.SslContextFactory.config] - Trusting all certificates configured for Client@3bfed1e[provider=null,keyStore=null,trustStore=null] ││2025-01-24 11:35:31.121 [WARN] [ty.util.ssl.SslContextFactory.config] - No Client EndPointIdentificationAlgorithm configured for Client@3bfed1e[provider=null,keyStore=null,trustStore=null] ││2025-01-24 11:35:31.122 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Postponing login to avoid throttling │└2025-01-24 11:35:31.122 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Initialize done... │┌2025-01-24 11:35:41.122 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Getting Tahoma Updates... ││2025-01-24 11:35:41.122 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - The access token expires soon, refreshing the cloud access token ││2025-01-24 11:35:41.337 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - OAuth2 Access Token: blabla, expires: 2025-01-24T11:35││2025-01-24 11:35:41.337 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Sending POST to url: https://www.tahomalink.com/enduser-mobile-web/enduserAPI/events/blabla/fetch with ││2025-01-24 11:35:41.480 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Received unexpected status code: 400 ││2025-01-24 11:35:41.480 [DEBUG] [nal.handler.SomfyTahomaBridgeHandler] - Cannot call url: https://www.tahomalink.com/enduser-mobile-web/enduserAPI/events/blabla/fetch with para││java.util.concurrent.ExecutionException: Unknown http error 400 while attempting to send a message. ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.sendMethodToTahomaWithCookie(SomfyTahomaBridgeHandler.java:865) ~[?:?] ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.sendPostToTahomaWithCookie(SomfyTahomaBridgeHandler.java:815) ~[?:?] ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.invokeCallToURL(SomfyTahomaBridgeHandler.java:1206) ~[?:?] ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.getE vents(SomfyTahomaBridgeHandler.java:468) ~[?:?] ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.getTahomaUpdates(SomfyTahomaBridgeHandler.java:604) ~[?:?] ││ at org.openhab.binding.somfytahoma.internal.handler.SomfyTahomaBridgeHandler.lambda$4(SomfyTahomaBridgeHandler.java:235) ~[?:?] ││ at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?] ││ at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?] ││ at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?] ││ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?] ││ at java.util.concurrent.ThreadPoolExecutor$Work ```