2026.3.3 is breaking Netatmo Integration

[jostrasser]

The problem

After updating from 2026.3.2 to 2026.3.3, the Netatmo Integration is broken.

[Netatmo] - Webhook not registered - https and port 443 is required to register the webhook

A downgrade is fixing the issue.

What version of Home Assistant Core has the issue?

core-2026.3.3

What was the last working version of Home Assistant Core?

core-2026.3.2

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Netatmo

Link to integration documentation on our website

https://www.home-assistant.io/integrations/netatmo

Diagnostics information

config_entry-netatmo-01K80BKJK4J5GAMAYDXSACJHF0.json

Example YAML snippet

Anything in the logs that might be useful for us?

Webhook not registered - https and port 443 is required to register the webhook

Additional information

No response

[home-assistant]

Hey there @cgtobi, mind taking a look at this issue as it has been labeled with an integration (netatmo) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of netatmo can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign netatmo Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) to the issue.
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@jostrasser Thanks for reporting this issue!

Before we dive in, please make sure this isn't a duplicate by searching through existing issues. Also check recently closed issues, as your problem might already be fixed but not yet released.

https://github.com/home-assistant/core/issues?q=%20label%3A%22integration%3A%20netatmo%22%20
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netatmo documentation
netatmo source
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[sdudulon2]

hi,
i have exactly the same problem since latest HA update
thanks

[Icarus81]

Same here... seems general

[WOeHA-4534]

I had the same issue with 26.3.3, I installed 26.3.4 and it is fixed.

[jostrasser]

Thanks, I can confirm that 26.3.4 is fixing this issue.

[jostrasser]

After a HA restart the error is back on my deployment:

The downgrade to 2026.3.2 fixed it immediately.

[MalyKij]

hi,
I have exactly the same problem since latest HA update, The downgrade from 2026.3.4 to 2026.3.2 fixed it immediately.
thanks

[jostrasser]

@cgtobi any ideas if the issue has to be fixed on the HA core or on the plugin source? Thanks

[liteglow]

I got the same problem, after HA update.
All my Netatmo sensors is unavaible.

[jostrasser]

I can see the same error with the 2026.3.2 release in the logs, but it isn´t impacting, the plugin is working with this release.

If I update to the latest release it breaks.

[kixtarter]

Yes, I can confirm this: all Netatmo weather integration sensors are “unavailable” all the time since the upgrade to 2026.3.3 and still with 2026.3.4, unfortunately making the Netatmo integration unusable at the moment.
Please @cgtobi have a look at this.