# Unknown certificate authority using webhooks integration

**URL:** <https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219>\
**Category:** Application Development\
**Created:** [July 29, 2022, 10:03am UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219 "2022-07-29T10:03:22Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lyanchev](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/lyanchev/32/35697_2.png) [@lyanchev](https://www.thethingsnetwork.org/forum/u/lyanchev)\
**Post date:** [July 29, 2022, 10:03am UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219/1 "2022-07-29T10:03:22Z")

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Hello everyone!

We have an integration with TTN and we are using webhooks. We never had any issues until now, when we need to change our certificate. We are not using the CLI and we are seeing some errors in the Console when we use the new certificate.The error we are getting in the live data tab of an application is:

`message_format": "request to `{url}` failed",`  
`"cause": {`  
` "namespace": "pkg/errors",`  
` "name": "x509_unknown_authority",`  
` "message_format": "unknown certificate authority",`  
` "correlation_id": "a50eb511a40e409091247fd692508882",`  
` "code": 14`  
` }`

The certificate is issued by RapidSSL, the old one we don’t have any troubles with is by Sectigo.  
Does anyone have any idea how can we fix this?

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**Author:** ![kersing](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/kersing/32/44777_2.png) [@kersing](https://www.thethingsnetwork.org/forum/u/kersing)\
**Post date:** [July 29, 2022, 10:40am UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219/2 "2022-07-29T10:40:16Z")

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> [@lyanchev](#):
>
> The certificate is issued by RapidSSL, the old one we don’t have any troubles with is by Sectigo.  
> Does anyone have any idea how can we fix this?

RapidSSL has several offerings, which one did you buy? And did you install any intermediate certificates that might be required?

BTW, Letsencrypt certificates work like a charm and are free…

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**Author:** ![lyanchev](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/lyanchev/32/35697_2.png) [@lyanchev](https://www.thethingsnetwork.org/forum/u/lyanchev)\
**Post date:** [July 29, 2022, 12:06pm UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219/3 "2022-07-29T12:06:54Z")

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It seems that the error was caused due to incomplete bundle certificate, so it was not from the Console. Thank you for the answer!

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**Author:** ![descartes](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/descartes/32/47220_2.png) [@descartes](https://www.thethingsnetwork.org/forum/u/descartes)\
**Post date:** [July 29, 2022, 2:13pm UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219/4 "2022-07-29T14:13:07Z")

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Please don’t cross-post here & on Slack, please do pick one and wait for a response before resorting to the other.

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**Author:** ![rubinasusku](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/r/bcef8e/32.png) [@rubinasusku](https://www.thethingsnetwork.org/forum/u/rubinasusku)\
**Post date:** [April 22, 2025, 7:23am UTC](https://www.thethingsnetwork.org/forum/t/unknown-certificate-authority-using-webhooks-integration/58219/5 "2025-04-22T07:23:09Z")

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I ran into a similar issue after switching to a [RapidSSL certificate](https://cheapsslweb.com/ssl-brands/rapidssl). TTN was showing “Unknown certificate authority” until I made sure the full certificate chain (including intermediates) was properly served. You can test it using SSL Labs to confirm everything’s in order. RapidSSL sometimes needs the intermediate bundle explicitly set up. Once I fixed that, the webhook integration worked fine again.

I hope it helps!