# Fleet-Server Connection Cannot be Confirmed

**URL:** <https://discuss.elastic.co/t/fleet-server-connection-cannot-be-confirmed/350683>\
**Category:** Kibana\
**Tags:** fleet\
**Created:** [January 9, 2024, 9:17pm UTC](https://discuss.elastic.co/t/fleet-server-connection-cannot-be-confirmed/350683 "2024-01-09T21:17:44Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![yago82](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yago82/32/97755_2.png) [@yago82](https://discuss.elastic.co/u/yago82)\
**Post date:** [January 10, 2024, 9:48am UTC](https://discuss.elastic.co/t/fleet-server-connection-cannot-be-confirmed/350683/2 "2024-01-10T09:48:42Z")

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> [@houstonragan](#):
>
> Fleet Server - Error - failed version compatibility check with elasticsearch: tls: failed to verify certificate: x509: certificate signed

Hi,

Try reading this thread, it should have the same problem as yours.

[Fleet Server - Error - x509: certificate signed by unknown authority - Elastic Stack / Elastic Agent - Discuss the Elastic Stack](https://discuss.elastic.co/t/fleet-server-error-x509-certificate-signed-by-unknown-authority/312923/7)

Regards

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_[View the full topic](https://discuss.elastic.co/t/fleet-server-connection-cannot-be-confirmed/350683)._