@LucienLassalle
I'm not sure if this points toward an issue but, when running the openssl command to check the pool cert using the UUID checked first here, I get this error
[image: 1780425904947-b65969a9-ec32-4b94-9aef-6ed1fe1e202a-image.jpeg]
I get the same error when trying to check for the pool cert on the host that is trying to join the pool. Even if the pool cert was copied to the joining host, if this points to an issue with that cert, then I suppose that might be the cause of the error?
For the additional questions:
Yes, they are time synchronized and are all using pool.ntp.org
Yes, they are all up to date. 3 of the hosts (the existing pool) were previously on 8.2 but were updated to 8.3 and the new host I am trying to join was set up fresh on 8.3.
Yes, the stunnel service reports that it is running correctly.
And, as expected based on the previous error, verifying the cert fails with the same error as shown when trying to check the pool's cert fingerprint.
Here's what I see in the logs after trying to join the host to the pool:
Pool Master
[image: 1780426810422-26265d3f-bb1b-44cb-b8b4-901a30c0a18e-image.jpeg]
Joining Host
[image: 1780426846532-be868a34-1efb-4809-90bb-c199982231ea-image.jpeg]
