# Elastic Security for SIEM - Fleet Server is not Healthy

**URL:** <https://discuss.elastic.co/t/elastic-security-for-siem-fleet-server-is-not-healthy/378245>\
**Category:** Elastic Training\
**Created:** [May 16, 2025, 5:55pm UTC](https://discuss.elastic.co/t/elastic-security-for-siem-fleet-server-is-not-healthy/378245 "2025-05-16T17:55:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Training](https://avatars.discourse-cdn.com/v4/letter/t/b5e925/32.png) [@Training](https://discuss.elastic.co/u/Training)\
**Post date:** [May 16, 2025, 5:55pm UTC](https://discuss.elastic.co/t/elastic-security-for-siem-fleet-server-is-not-healthy/378245/1 "2025-05-16T17:55:25Z")

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Course: Elastic Security for SIEM  
Version: On-Demand  
Question: Started a fresh lab environment, but the fleet server comes up as unhealthy and the security-lab agent is offline. Since I don't have a healthy fleet, I am unable to begin the lab as instructed.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/c/7/c72e194732515ef75fe0537d53fb6a95db55c5c6.png)

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**Author:** ![Training](https://avatars.discourse-cdn.com/v4/letter/t/b5e925/32.png) [@Training](https://discuss.elastic.co/u/Training)\
**Post date:** [May 18, 2025, 12:33am UTC](https://discuss.elastic.co/t/elastic-security-for-siem-fleet-server-is-not-healthy/378245/2 "2025-05-18T00:33:59Z")

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The certificate has expired...

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/4/f/4f62101475bf378779bead9b35ac9366d93a70eb.png)