# Fleet server certificate problem (I think)

**URL:** <https://discuss.elastic.co/t/fleet-server-certificate-problem-i-think/310168>\
**Category:** Elastic Agent\
**Created:** [July 20, 2022, 2:40pm UTC](https://discuss.elastic.co/t/fleet-server-certificate-problem-i-think/310168 "2022-07-20T14:40:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rugenl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rugenl/32/12887_2.png) [@rugenl](https://discuss.elastic.co/u/rugenl)\
**Post date:** [July 20, 2022, 2:40pm UTC](https://discuss.elastic.co/t/fleet-server-certificate-problem-i-think/310168/1 "2022-07-20T14:40:33Z")

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I see posts similar, people point to the problem, but none point to the fix.

I installed an 8.3.1 fleet server. when trying to enroll the first host, I get error Error:

> fail to enroll: fail to execute request to fleet-server: x509: certificate signed by unknown authority

I can't find any understandable way to add my certificate to the fleet server. Opening a browser to port 8220 verifies that this is a self signed cert.

How do I add a cert to fleet?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 17, 2022, 2:40pm UTC](https://discuss.elastic.co/t/fleet-server-certificate-problem-i-think/310168/2 "2022-08-17T14:40:34Z")

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