I recently installed the Elastic Stack and used Fleet to add hosts, but all Windows and Linux hosts appear as unhealthy. Has anyone else encountered this issue?
Welcome @a.thiome!
Do you have any errors or warnings in the logs?
Welcome to the community
It’s hard to be precise without logs, but when all hosts show as unhealthy, it’s usually something systemic. A few things worth checking:
Elastic Agent service is running properly on the hosts
connectivity to Fleet Server (network, DNS, URL)
Fleet Server itself is healthy
TLS/certificate issues (very common in fresh setups)
agent successfully enrolled and assigned to a policy
firewall/proxy blocking traffic (especially 8220 / 9200)
version compatibility between Agent, Fleet Server, and Elasticsearch
If you can share the Elastic Agent or Fleet Server logs, that will help pinpoint the exact issue quickly.
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